{"id":21537,"date":"2021-12-17T16:26:56","date_gmt":"2021-12-17T09:26:56","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=21537"},"modified":"2021-12-17T16:26:58","modified_gmt":"2021-12-17T09:26:58","slug":"xac-suat","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/xac-suat\/","title":{"rendered":"X\u00c1C SU\u1ea4T"},"content":{"rendered":"<h1><strong>A \u2013 L\u00dd THUY\u1ebeT T\u00d3M T\u1eaeT<\/strong><\/h1>\n<p><strong>1. Bi\u1ebfn c\u1ed1 <\/strong><\/p>\n<p>\u00b7 Kh\u00f4ng gian m\u1eabu <em>W:<\/em> l\u00e0 t\u1eadp c\u00e1c k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 x\u1ea3y ra c\u1ee7a m\u1ed9t ph\u00e9p th\u1eed.<\/p>\n<p>\u00b7 Bi\u1ebfn c\u1ed1 <em>A:<\/em> l\u00e0 t\u1eadp c\u00e1c k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p th\u1eed l\u00e0m x\u1ea3y ra <em>A. A \u00cc W.<\/em><\/p>\n<p>\u00b7 Bi\u1ebfn c\u1ed1 kh\u00f4ng: \u00c6 \u00b7 Bi\u1ebfn c\u1ed1 ch\u1eafc ch\u1eafn: <em>W<\/em><\/p>\n<p>\u00b7 Bi\u1ebfn c\u1ed1 \u0111\u1ed1i c\u1ee7a <em>A: <\/em> <img decoding=\"async\" width=\"81\" height=\"28\" class=\"wp-image-21538\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_256-23.png\" alt=\"IMG_256\" \/><\/p>\n<p>\u00b7 H\u1ee3p hai bi\u1ebfn c\u1ed1: A \u00c8 B \u00b7 Giao hai bi\u1ebfn c\u1ed1: <em>A \u00c7 B <\/em>(ho\u1eb7c <em>A.B<\/em>)<\/p>\n<p>\u00b7 Hai bi\u1ebfn c\u1ed1 xung kh\u1eafc: <em>A \u00c7 B = \u00c6<\/em><\/p>\n<p>\u00b7 Hai bi\u1ebfn c\u1ed1 \u0111\u1ed9c l\u1eadp: n\u1ebfu vi\u1ec7c x\u1ea3y ra bi\u1ebfn c\u1ed1 n\u00e0y kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c x\u1ea3y ra bi\u1ebfn c\u1ed1 kia.<\/p>\n<p><strong>2. X\u00e1c su\u1ea5t<\/strong><\/p>\n<p>\u00b7 X\u00e1c su\u1ea5t c\u1ee7a bi\u1ebfn c\u1ed1:<em> P(A) = <\/em> <img decoding=\"async\" width=\"49\" height=\"56\" class=\"wp-image-21539\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_257-22.png\" alt=\"IMG_257\" \/><\/p>\n<p><em> \u00b7 0 \u00a3 P(A) \u00a3 1; P(W) = 1; P(\u00c6) = 0<\/em><\/p>\n<p>\u00b7 Qui t\u1eafc c\u1ed9ng: N\u1ebfu <em>A \u00c7 B = \u00c6 t<\/em>h\u00ec <em>P(A \u00c8 B) = P(A) + P(B)<\/em><\/p>\n<p>M\u1edf r\u1ed9ng:<em> A, B <\/em>b\u1ea5t k\u00ec:<em> P(A \u00c8 B) = P(A) + P(B) \u2013 P(A.B)<\/em><\/p>\n<p><em> \u00b7 P(<\/em> <img decoding=\"async\" width=\"21\" height=\"27\" class=\"wp-image-21540\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_258-23.png\" alt=\"IMG_258\" \/><em>) = 1 \u2013 P(A)<\/em><\/p>\n<p>\u00b7 Qui t\u1eafc nh\u00e2n: N\u1ebfu <em>A, B<\/em> \u0111\u1ed9c l\u1eadp th\u00ec<em> P(A. B) = P(A). P(B)<\/em><\/p>\n<h1><strong>B \u2013 B\u00c0I T\u1eacP<\/strong><\/h1>\n<h2><strong>D\u1ea0NG 1: X\u00c1C \u0110\u1ecaNH PH\u00c9P TH\u1eec, KH\u00d4NG GIAN M\u1eaaU V\u00c0 BI\u1ebeN C\u1ed0<\/strong><\/h2>\n<p><strong>Ph\u01b0\u01a1ng ph\u00e1p:<\/strong> \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh kh\u00f4ng gian m\u1eabu v\u00e0 bi\u1ebfn c\u1ed1 ta th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c c\u00e1ch sau<\/p>\n<p><strong>C\u00e1ch 1:<\/strong> Li\u1ec7t k\u00ea c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a kh\u00f4ng gian m\u1eabu v\u00e0 bi\u1ebfn c\u1ed1 r\u1ed3i ch\u00fang ta \u0111\u1ebfm.<\/p>\n<p><strong>C\u00e1ch 2:<\/strong>S\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc \u0111\u1ebfm \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a kh\u00f4ng gian m\u1eabu v\u00e0 bi\u1ebfn c\u1ed1.<\/p>\n<p><strong>C\u00e2u 1: <\/strong>Trong c\u00e1c th\u00ed nghi\u1ec7m sau th\u00ed nghi\u1ec7m n\u00e0o kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e9p th\u1eed ng\u1eabu nhi\u00ean:<\/p>\n<p><strong>A. <\/strong>Gieo \u0111\u1ed3ng ti\u1ec1n xem n\u00f3 m\u1eb7t ng\u1eeda hay m\u1eb7t s\u1ea5p<\/p>\n<p><strong>B. <\/strong>Gieo <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21541\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_259-21.png\" alt=\"IMG_259\" \/> \u0111\u1ed3ng ti\u1ec1n v\u00e0 xem c\u00f3 m\u1ea5y \u0111\u1ed3ng ti\u1ec1n l\u1eadt ng\u1eeda<\/p>\n<p><strong>C. <\/strong>Ch\u1ecdn b\u1ea5t k\u00ec 1 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> trong l\u1edbp v\u00e0 xem l\u00e0 nam hay n\u1eef<\/p>\n<p><strong>D. <\/strong>B\u1ecf hai vi\u00ean bi xanh v\u00e0 ba vi\u00ean bi \u0111\u1ecf trong m\u1ed9t chi\u1ebfc h\u1ed9p, sau \u0111\u00f3 l\u1ea5y t\u1eebng vi\u00ean m\u1ed9t \u0111\u1ec3 \u0111\u1ebfm xem c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau vi\u00ean bi.<\/p>\n<p><strong>C\u00e2u 2: <\/strong>Gieo 3 \u0111\u1ed3ng ti\u1ec1n l\u00e0 m\u1ed9t ph\u00e9p th\u1eed ng\u1eabu nhi\u00ean c\u00f3 kh\u00f4ng gian m\u1eabu l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"148\" height=\"34\" class=\"wp-image-21542\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_260-23.png\" alt=\"IMG_260\" \/><\/p>\n<p><strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"309\" height=\"34\" class=\"wp-image-21543\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_261-20.png\" alt=\"IMG_261\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_261-20.png 309w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_261-20-300x33.png 300w\" sizes=\"(max-width: 309px) 100vw, 309px\" \/> .<\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"374\" height=\"34\" class=\"wp-image-21544\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_262-21.png\" alt=\"IMG_262\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_262-21.png 374w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_262-21-300x27.png 300w\" sizes=\"(max-width: 374px) 100vw, 374px\" \/> .<\/p>\n<p><strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"285\" height=\"34\" class=\"wp-image-21545\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_263-22.png\" alt=\"IMG_263\" \/> .<\/p>\n<p><strong>C\u00e2u 3: <\/strong>Gieo m\u1ed9t \u0111\u1ed3ng ti\u1ec1n v\u00e0 m\u1ed9t con s\u00facs\u1eafc. S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a kh\u00f4ng gian m\u1eabu l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"27\" height=\"21\" class=\"wp-image-21546\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_264-21.png\" alt=\"IMG_264\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"21\" class=\"wp-image-21547\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_265-21.png\" alt=\"IMG_265\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"24\" class=\"wp-image-21548\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_266-21.png\" alt=\"IMG_266\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21549\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_267-22.png\" alt=\"IMG_267\" \/> .<\/p>\n<p><strong>C\u00e2u 4: <\/strong>Gieo 2 con s\u00fac s\u1eafc v\u00e0 g\u1ecdi k\u1ebft qu\u1ea3 x\u1ea3y ra l\u00e0 t\u00edch s\u1ed1 hai n\u00fat \u1edf m\u1eb7t tr\u00ean. S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a kh\u00f4ng gian m\u1eabu l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21550\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_268-22.png\" alt=\"IMG_268\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"24\" class=\"wp-image-21551\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_269-22.png\" alt=\"IMG_269\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"27\" height=\"24\" class=\"wp-image-21552\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_270-20.png\" alt=\"IMG_270\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"26\" height=\"24\" class=\"wp-image-21553\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_271-22.png\" alt=\"IMG_271\" \/> .<\/p>\n<p><strong>C\u00e2u 5: <\/strong>Gieo con s\u00fac s\u1eafc hai l\u1ea7n. Bi\u1ebfn c\u1ed1 A l\u00e0 bi\u1ebfn c\u1ed1 \u0111\u1ec3 sau hai l\u1ea7n gieo c\u00f3 \u00edt nh\u1ea5t m\u1ed9t m\u1eb7t 6 ch\u1ea5m :<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"299\" height=\"34\" class=\"wp-image-21554\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_272-22.png\" alt=\"IMG_272\" \/> .<\/p>\n<p><strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"351\" height=\"34\" class=\"wp-image-21555\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_273-20.png\" alt=\"IMG_273\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_273-20.png 351w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_273-20-300x29.png 300w\" sizes=\"(max-width: 351px) 100vw, 351px\" \/> .<\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"602\" height=\"34\" class=\"wp-image-21556\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_274-22.png\" alt=\"IMG_274\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_274-22.png 602w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_274-22-300x17.png 300w\" sizes=\"(max-width: 602px) 100vw, 602px\" \/> .<\/p>\n<p><strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"299\" height=\"34\" class=\"wp-image-21557\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_275-21.png\" alt=\"IMG_275\" \/> .<\/p>\n<p><strong>C\u00e2u 6: <\/strong>Gieo \u0111\u1ed3ng ti\u1ec1n hai l\u1ea7n. S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a bi\u1ebfn c\u1ed1 \u0111\u1ec3 m\u1eb7t ng\u1eeda xu\u1ea5t hi\u1ec7n \u0111\u00fang <img loading=\"lazy\" decoding=\"async\" width=\"12\" height=\"21\" class=\"wp-image-21558\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_276-22.png\" alt=\"IMG_276\" \/> l\u1ea7n l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"21\" class=\"wp-image-21559\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_277-22.png\" alt=\"IMG_277\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"21\" class=\"wp-image-21560\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_278-22.png\" alt=\"IMG_278\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21561\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_279-20.png\" alt=\"IMG_279\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"24\" class=\"wp-image-21562\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_280-22.png\" alt=\"IMG_280\" \/> .<\/p>\n<p><strong>C\u00e2u 7: <\/strong>Gieo ng\u1eabu nhi\u00ean <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"21\" class=\"wp-image-21563\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_281-21.png\" alt=\"IMG_281\" \/> \u0111\u1ed3ng ti\u1ec1n th\u00ec kh\u00f4ng gian m\u1eabu c\u1ee7a ph\u00e9p th\u1eed c\u00f3 bao nhi\u00eau bi\u1ebfn c\u1ed1:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"21\" class=\"wp-image-21564\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_282-22.png\" alt=\"IMG_282\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21565\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_283-21.png\" alt=\"IMG_283\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"21\" class=\"wp-image-21566\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_284-21.png\" alt=\"IMG_284\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"24\" class=\"wp-image-21567\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_285-22.png\" alt=\"IMG_285\" \/> .<\/p>\n<p><strong>C\u00e2u 8: <\/strong>Cho ph\u00e9p th\u1eed c\u00f3 kh\u00f4ng gian m\u1eabu <img loading=\"lazy\" decoding=\"async\" width=\"147\" height=\"34\" class=\"wp-image-21568\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_286-21.png\" alt=\"IMG_286\" \/> . C\u00e1c c\u1eb7p bi\u1ebfn c\u1ed1 kh\u00f4ng \u0111\u1ed1i nhau l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"34\" class=\"wp-image-21569\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_287-22.png\" alt=\"IMG_287\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"132\" height=\"34\" class=\"wp-image-21570\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_288-22.png\" alt=\"IMG_288\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-21571\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_289-23.png\" alt=\"IMG_289\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"100\" height=\"34\" class=\"wp-image-21572\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_290-22.png\" alt=\"IMG_290\" \/> . .<\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"97\" height=\"34\" class=\"wp-image-21573\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_291-22.png\" alt=\"IMG_291\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"34\" class=\"wp-image-21574\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_292-22.png\" alt=\"IMG_292\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"21\" height=\"21\" class=\"wp-image-21575\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_293-22.png\" alt=\"IMG_293\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"21\" height=\"24\" class=\"wp-image-21576\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_294-22.png\" alt=\"IMG_294\" \/> .<\/p>\n<p><strong>C\u00e2u 9: <\/strong>M\u1ed9t h\u1ed9p \u0111\u1ef1ng <img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"24\" class=\"wp-image-21577\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_295-21.png\" alt=\"IMG_295\" \/> th\u1ebb, \u0111\u00e1nh s\u1ed1 t\u1eeb <img loading=\"lazy\" decoding=\"async\" width=\"12\" height=\"21\" class=\"wp-image-21578\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_296-21.png\" alt=\"IMG_296\" \/> \u0111\u1ebfn <img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"24\" class=\"wp-image-21579\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_297-21.png\" alt=\"IMG_297\" \/> . Ch\u1ecdn ng\u1eabu nhi\u00ean <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21580\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_298-21.png\" alt=\"IMG_298\" \/> th\u1ebb. G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"21\" height=\"21\" class=\"wp-image-21581\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_299-21.png\" alt=\"IMG_299\" \/> l\u00e0 bi\u1ebfn c\u1ed1 \u0111\u1ec3 t\u1ed5ng s\u1ed1 c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21582\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_300-21.png\" alt=\"IMG_300\" \/> th\u1ebb \u0111\u01b0\u1ee3c ch\u1ecdn kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21583\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_301-21.png\" alt=\"IMG_301\" \/> . S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a bi\u1ebfn c\u1ed1 <img loading=\"lazy\" decoding=\"async\" width=\"21\" height=\"21\" class=\"wp-image-21584\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_302-21.png\" alt=\"IMG_302\" \/> l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"21\" class=\"wp-image-21585\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_303-21.png\" alt=\"IMG_303\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21586\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_304-21.png\" alt=\"IMG_304\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"21\" class=\"wp-image-21587\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_305-21.png\" alt=\"IMG_305\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"24\" class=\"wp-image-21588\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_306-21.png\" alt=\"IMG_306\" \/> .<\/p>\n<p><strong>C\u00e2u 10: <\/strong>X\u00e9t ph\u00e9p th\u1eed tung con s\u00fac s\u1eafc 6 m\u1eb7t hai l\u1ea7n. X\u00e1c \u0111\u1ecbnh s\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a kh\u00f4ng gian m\u1eabu<\/p>\n<p><strong>A. <\/strong>36<strong> B. <\/strong>40<strong> C. <\/strong>38<strong> D. <\/strong>35<\/p>\n<p><strong>C\u00e2u 10\u2019:<\/strong>X\u00e9t ph\u00e9p th\u1eed tung con s\u00fac s\u1eafc 6 m\u1eb7t hai l\u1ea7n. C\u00e1c bi\u1ebfn c\u1ed1:<\/p>\n<p>A:\u201c s\u1ed1 ch\u1ea5m xu\u1ea5t hi\u1ec7n \u1edf c\u1ea3 hai l\u1ea7n tung gi\u1ed1ng nhau\u201d<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21589\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_307-21.png\" alt=\"IMG_307\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"74\" height=\"27\" class=\"wp-image-21590\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_308-21.png\" alt=\"IMG_308\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21591\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_309-20.png\" alt=\"IMG_309\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"74\" height=\"27\" class=\"wp-image-21592\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_310-21.png\" alt=\"IMG_310\" \/><\/p>\n<p>B:\u201c T\u1ed5ng s\u1ed1 ch\u1ea5m xu\u1ea5t hi\u1ec7n \u1edf hai l\u1ea7n tung chia h\u1ebft cho 3\u201d<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21593\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_311-20.png\" alt=\"IMG_311\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21594\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_312-20.png\" alt=\"IMG_312\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21595\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_313-20.png\" alt=\"IMG_313\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21596\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_314-20.png\" alt=\"IMG_314\" \/><\/p>\n<p>C: \u201c S\u1ed1 ch\u1ea5m xu\u1ea5t hi\u1ec7n \u1edf l\u1ea7n m\u1ed9t l\u1edbn h\u01a1n s\u1ed1 ch\u1ea5m xu\u1ea5t hi\u1ec7n \u1edf l\u1ea7n hai\u201d.<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21597\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_315-20.png\" alt=\"IMG_315\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21598\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_316-20.png\" alt=\"IMG_316\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21599\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_317-20.png\" alt=\"IMG_317\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21600\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_318-20.png\" alt=\"IMG_318\" \/><\/p>\n<p><strong>C\u00e2u 11: <\/strong>Gieo m\u1ed9t \u0111\u1ed3ng ti\u1ec1n 5 l\u1ea7n. X\u00e1c \u0111\u1ecbnh v\u00e0 t\u00ednh s\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a<\/p>\n<p><strong>1.<\/strong> Kh\u00f4ng gian m\u1eabu<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"76\" height=\"27\" class=\"wp-image-21601\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_319-20.png\" alt=\"IMG_319\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21602\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_320-20.png\" alt=\"IMG_320\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"27\" class=\"wp-image-21603\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_321-19.png\" alt=\"IMG_321\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"27\" class=\"wp-image-21604\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_322-19.png\" alt=\"IMG_322\" \/><\/p>\n<p><strong>2.<\/strong> C\u00e1c bi\u1ebfn c\u1ed1:<\/p>\n<p>A: \u201c L\u1ea7n \u0111\u1ea7u ti\u00ean xu\u1ea5t hi\u1ec7n m\u1eb7t ng\u1eeda\u201d<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21605\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_323-17.png\" alt=\"IMG_323\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21606\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_324-17.png\" alt=\"IMG_324\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21607\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_325-17.png\" alt=\"IMG_325\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21608\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_326-17.png\" alt=\"IMG_326\" \/><\/p>\n<p>B: \u201c M\u1eb7t s\u1ea5p xu\u1ea5t hi\u1ec7n \u00edt nh\u1ea5t m\u1ed9t l\u1ea7n\u201d<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21609\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_327-17.png\" alt=\"IMG_327\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21610\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_328-16.png\" alt=\"IMG_328\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21611\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_329-16.png\" alt=\"IMG_329\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21612\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_330-16.png\" alt=\"IMG_330\" \/><\/p>\n<p>C: \u201c S\u1ed1 l\u1ea7n m\u1eb7t s\u1ea5p xu\u1ea5t hi\u1ec7n nhi\u1ec1u h\u01a1n m\u1eb7t ng\u1eeda\u201d<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21613\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_331-16.png\" alt=\"IMG_331\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"27\" class=\"wp-image-21614\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_332-16.png\" alt=\"IMG_332\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"27\" class=\"wp-image-21615\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_333-16.png\" alt=\"IMG_333\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"27\" class=\"wp-image-21616\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_334-15.png\" alt=\"IMG_334\" \/><\/p>\n<p><strong>C\u00e2u 12: <\/strong>C\u00f3 100 t\u1ea5m th\u1ebb \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 100. L\u1ea5y ng\u1eabu nhi\u00ean 5 th\u1ebb. T\u00ednh s\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a:<\/p>\n<p><strong>1.<\/strong> Kh\u00f4ng gian m\u1eabu<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"95\" height=\"33\" class=\"wp-image-21617\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_335-15.png\" alt=\"IMG_335\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"95\" height=\"33\" class=\"wp-image-21618\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_336-15.png\" alt=\"IMG_336\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"95\" height=\"33\" class=\"wp-image-21619\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_337-15.png\" alt=\"IMG_337\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"95\" height=\"33\" class=\"wp-image-21620\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_338-15.png\" alt=\"IMG_338\" \/><\/p>\n<p><strong>2.<\/strong> C\u00e1c bi\u1ebfn c\u1ed1:<\/p>\n<p>A: \u201c S\u1ed1 ghi tr\u00ean c\u00e1c t\u1ea5m th\u1ebb \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0 s\u1ed1 ch\u1eb5n\u201d<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"33\" class=\"wp-image-21621\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_339-15.png\" alt=\"IMG_339\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"94\" height=\"33\" class=\"wp-image-21622\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_340-15.png\" alt=\"IMG_340\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"33\" class=\"wp-image-21623\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_341-15.png\" alt=\"IMG_341\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"94\" height=\"33\" class=\"wp-image-21624\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_342-15.png\" alt=\"IMG_342\" \/><\/p>\n<p>B: \u201c C\u00f3 \u00edt nh\u1ea5t m\u1ed9t s\u1ed1 ghi tr\u00ean th\u1ebb \u0111\u01b0\u1ee3c ch\u1ecdn chia h\u1ebft cho 3\u201d.<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"139\" height=\"33\" class=\"wp-image-21625\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_343-15.png\" alt=\"IMG_343\" \/><strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"137\" height=\"33\" class=\"wp-image-21626\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_344-15.png\" alt=\"IMG_344\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"137\" height=\"33\" class=\"wp-image-21627\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_345-15.png\" alt=\"IMG_345\" \/><strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"137\" height=\"33\" class=\"wp-image-21628\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_346-14.png\" alt=\"IMG_346\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A \u2013 L\u00dd THUY\u1ebeT T\u00d3M T\u1eaeT 1. Bi\u1ebfn c\u1ed1 \u00b7 Kh\u00f4ng gian m\u1eabu W: l\u00e0 t\u1eadp c\u00e1c k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 x\u1ea3y ra c\u1ee7a m\u1ed9t ph\u00e9p th\u1eed. \u00b7 Bi\u1ebfn c\u1ed1 A: l\u00e0 t\u1eadp c\u00e1c k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p th\u1eed l\u00e0m x\u1ea3y ra A. A \u00cc W. \u00b7 Bi\u1ebfn c\u1ed1 kh\u00f4ng: \u00c6 \u00b7 Bi\u1ebfn c\u1ed1 ch\u1eafc [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[42],"tags":[],"class_list":["post-21537","post","type-post","status-publish","format-standard","hentry","category-toan-lop-11"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/21537","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=21537"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/21537\/revisions"}],"predecessor-version":[{"id":21629,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/21537\/revisions\/21629"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=21537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=21537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=21537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}