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{"id":44350,"date":"2019-10-16T16:03:21","date_gmt":"2019-10-16T09:03:21","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=44350"},"modified":"2019-10-16T16:03:28","modified_gmt":"2019-10-16T09:03:28","slug":"giai-toan-10-chuong-5-thong-ke-bai-1-bang-phan-bo-tan-so-va-tan-suat","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/giai-toan-10-chuong-5-thong-ke-bai-1-bang-phan-bo-tan-so-va-tan-suat\/","title":{"rendered":"[Gi\u1ea3i To\u00e1n 10] Ch\u01b0\u01a1ng 5: Th\u1ed1ng k\u00ea\/ B\u00e0i 1: B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 v\u00e0 t\u1ea7n su\u1ea5t"},"content":{"rendered":"\n

Tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi To\u00e1n 10 \u0110\u1ea1i s\u1ed1 B\u00e0i 1 trang 113<\/strong>: Ti\u1ec1n l\u00e3i (ngh\u00ecn \u0111\u1ed3ng) c\u1ee7a m\u1ed7i ng\u00e0y trong 30 ng\u00e0y \u0111\u01b0\u1ee3c kh\u1ea3o s\u00e1t \u1edf m\u1ed9t qu\u1ea7y b\u00e1n b\u00e1o<\/ins><\/p>\n\n\n\n

\"Gi\u1ea3i<\/figure>\n\n\n\n

H\u00e3y l\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp v\u1edbi c\u00e1c l\u1edbp nh\u01b0 sau:<\/p>\n\n\n\n

[29,5; 40,5), [40,5; 51,5), [51,5; 62,5), [62,5; 73,5), [73,5; 84,5), [84,5; 95,5].<\/p>\n\n\n\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n\n\n\n
L\u1edbp ti\u1ec1n l\u00e3i c\u1ee7a m\u1ed7i ng\u00e0y (ngh\u00ecn \u0111\u1ed3ng) <\/td>\tT\u1ea7n s\u1ed1 \t<\/td>T\u1ea7n su\u1ea5t (%)<\/td><\/tr>
[29,5; 40,5)\t<\/td>3\t<\/td>10<\/td><\/tr>
[40,5; 51,5)\t<\/td>5\t<\/td>16,7<\/td><\/tr>
[51,5; 62,5)\t<\/td>6\t<\/td>20<\/td><\/tr>
[62,5; 73,5)\t<\/td>6\t<\/td>20<\/td><\/tr>
[73,5; 84,5)\t<\/td>6\t<\/td>20<\/td><\/tr>
[84,5; 95,5]\t<\/td>4\t<\/td>13,3<\/td><\/tr>
C\u1ed9ng \t<\/td>30\t<\/td>100 (%)<\/td><\/tr><\/tbody><\/table>\n\n\n\n

B\u00e0i 1 (trang 113 SGK \u0110\u1ea1i S\u1ed1 10)<\/strong>: Cho c\u00e1c s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea ghi trong b\u1ea3ng sau<\/p>\n\n\n\n

Tu\u1ed5i th\u1ecd c\u1ee7a 30 b\u00f3ng \u0111\u00e8n \u0111i\u1ec7n \u0111\u01b0\u1ee3c th\u1eafp th\u1eed (\u0111\u01a1n v\u1ecb: gi\u1edd)<\/em><\/p>\n\n\n\n

\"Gi\u1ea3i<\/figure>\n\n\n\n

<\/ins><\/p>\n\n\n\n

a) L\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 r\u1eddi r\u1ea1c v\u00e0 b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 r\u1eddi r\u1ea1c.<\/p>\n\n\n\n

b) D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 c\u00e2u a, h\u00e3y \u0111\u01b0a ra nh\u1eadn x\u00e9t v\u1ec1 tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c b\u00f3ng \u0111\u1ec1n n\u00f3i tr\u00ean.<\/p>\n\n\n\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n\n\n\n

a) B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1: <\/p>\n\n\n\n
Tu\u1ed5i th\u1ecd\t<\/td>T\u1ea7n s\u1ed1<\/td><\/tr>
1150\t<\/td>3<\/td><\/tr>
1160\t<\/td>6<\/td><\/tr>
1170\t<\/td>12<\/td><\/tr>
1180\t<\/td>6<\/td><\/tr>
1190\t<\/td>3<\/td><\/tr>
C\u1ed9ng \t<\/td>30<\/td><\/tr><\/tbody><\/table>\n\n\n\n

B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n su\u1ea5t: <\/p>\n\n\n\n
Tu\u1ed5i th\u1ecd\t<\/td>T\u1ea7n su\u1ea5t<\/td><\/tr>
1150\t<\/td> 10%<\/td><\/tr>
1160\t<\/td>20%<\/td><\/tr>
1170\t<\/td>40%<\/td><\/tr>
1180\t<\/td>20%<\/td><\/tr>
1190\t<\/td>10%<\/td><\/tr>
C\u1ed9ng \t<\/td>100%<\/td><\/tr><\/tbody><\/table>\n\n\n\n

b) Nh\u1eadn x\u00e9t: ph\u1ea7n l\u1edbn c\u00e1c b\u00f3ng \u0111\u00e8n c\u00f3 tu\u1ed5i th\u1ecd t\u1eeb 1160 \u0111\u1ebfn 1180 gi\u1edd. <\/p>\n\n\n\n

B\u00e0i 2 (trang 114 SGK \u0110\u1ea1i S\u1ed1 10)<\/strong>: Cho b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 gh\u00e9p l\u1edbp sau<\/p>\n\n\n\n

\"Gi\u1ea3i<\/figure>\n\n\n\n

a) L\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp.<\/ins><\/p>\n\n\n\n

b) D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 c\u00e2u a, h\u00e3y n\u00eau r\u00f5 trong 60 l\u00e1 d\u01b0\u01a1ng x\u1ec9 \u0111\u01b0\u1ee3c kh\u1ea3o s\u00e1t:<\/p>\n\n\n\n

S\u1ed1 l\u00e1 c\u00f3 chi\u1ec1u d\u00e0i 30 cm chi\u1ebfn bao nhi\u00eau ph\u1ea7n tr\u0103m?<\/p>\n\n\n\n

S\u1ed1 l\u00e1 c\u00f3 chi\u1ec1u d\u00e0i t\u1eeb 30 cm \u0111\u1ebfn 50 cm chi\u1ebfm bao nhi\u00eau ph\u1ea7n tr\u0103m?<\/p>\n\n\n\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n\n\n\n

a)<\/strong> B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 gh\u00e9p l\u1edbp:<\/p>\n\n\n\n
L\u1edbp c\u1ee7a chi\u1ec1u d\u00e0i (cm)<\/th>T\u1ea7n su\u1ea5t<\/th><\/tr>
[10; 20)<\/td>13,3<\/td><\/tr>
[20; 30)<\/td>30,0<\/td><\/tr>
[30; 40)<\/td>40,0<\/td><\/tr>
[40; 50)<\/td>16,7<\/td><\/tr>
C\u1ed9ng<\/td>100 (%)<\/td><\/tr><\/tbody><\/table>\n\n\n\n

b)<\/strong> T\u1ec9 l\u1ec7 l\u00e1 c\u00f3 chi\u1ec1u d\u00e0i d\u01b0\u1edbi 30 cm l\u00e0:<\/p>\n\n\n\n

13,3 + 30 = 43,3 %<\/p>\n\n\n\n

T\u1ec9 l\u1ec7 l\u00e1 c\u00f3 chi\u1ec1u d\u00e0i t\u1eeb 30 cm \u0111\u1ebfn 50 cm l\u00e0:<\/p>\n\n\n\n

100 – 43,3 = 56,7 %<\/p>\n\n\n\n

B\u00e0i 3 (trang 114 SGK \u0110\u1ea1i S\u1ed1 10)<\/strong>: Cho c\u00e1c s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea ghi trong b\u1ea3ng sau<\/p>\n\n\n\n

Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 30 c\u1ee7 khoai t\u00e2y thu ho\u1ea1ch \u0111\u01b0\u1ee3c \u1edf n\u00f4ng tr\u01b0\u1eddng T (\u0111\u01a1n v\u1ecb: g).<\/em><\/p>\n\n\n\n

\"Gi\u1ea3i<\/figure>\n\n\n\n

<\/ins><\/p>\n\n\n\n

L\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 v\u00e0 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp, v\u1edbi c\u00e1c l\u1edbp sau: <\/p>\n\n\n\n

[70; 80); [80; 90); [90; 100); [110; 120)<\/p>\n\n\n\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n\n\n\n

B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 v\u00e0 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp<\/p>\n\n\n\n
L\u1edbp c\u1ee7a kh\u1ed1i l\u01b0\u1ee3ng<\/th>T\u1ea7n s\u1ed1<\/th>T\u1ea7n su\u1ea5t<\/th><\/tr>
[70; 80)<\/td>3<\/td>10%<\/td><\/tr>
[80; 90)<\/td>6<\/td>20%<\/td><\/tr>
[90; 100)<\/td>12<\/td>40%<\/td><\/tr>
[100; 110)<\/td>6<\/td>20%<\/td><\/tr>
[110; 120)<\/td>3<\/td>10%<\/td><\/tr>
C\u1ed9ng<\/td>30<\/td>100%<\/td><\/tr><\/tbody><\/table>\n\n\n\n

B\u00e0i 4 (trang 114 SGK \u0110\u1ea1i S\u1ed1 10)<\/strong>: Cho c\u00e1c s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea ghi trong b\u1ea3ng sau<\/p>\n\n\n\n

Chi\u1ec1u cao c\u1ee7a 35 c\u00e2y b\u1ea1ch \u0111\u00e0n (\u0111\u01a1n v\u1ecb : m) <\/em><\/p>\n\n\n\n

\"Gi\u1ea3i<\/figure>\n\n\n\n

<\/ins><\/p>\n\n\n\n

a) L\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 v\u00e0 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp, v\u1edbi l\u1edbp sau:<\/p>\n\n\n\n

[6,5; 7,0); [7,0; 7,5); [7,5; 8,0); [8,0; 8,5); [8,5; 9,0); [9,0; 9,5)<\/p>\n\n\n\n

b) D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 c\u00e2u a, h\u00e3y n\u00eau nh\u1eadt x\u00e9t v\u1ec1 chi\u1ec1u cao c\u1ee7a 35 c\u00e2y b\u1ea1ch \u0111\u00e0n n\u00f3i tr\u00ean.<\/p>\n\n\n\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n\n\n\n

a)<\/strong> B\u1ea3ng ph\u00e2n ph\u1ed1i t\u1ea7n s\u1ed1 v\u00e0 gh\u00e9p l\u1edbp:<\/p>\n\n\n\n
L\u1edbp <\/th>T\u1ea7n s\u1ed1<\/th>T\u1ea7n su\u1ea5t<\/th><\/tr>
[6,5; 7,0)<\/td>2<\/td>5,7%<\/td><\/tr>
[7,0; 7,5)<\/td>4<\/td>11,5%<\/td><\/tr>
[7,5; 8,0)<\/td>9<\/td>25,7%<\/td><\/tr>
[8,0; 8,5)<\/td>11<\/td>31,4%<\/td><\/tr>
[8,5; 9,0)<\/td>6<\/td>17,1%<\/td><\/tr>
[9,0; 9,5]<\/td>3<\/td>8,6%<\/td><\/tr>
C\u1ed9ng<\/td>35<\/td>100%<\/td><\/tr><\/tbody><\/table>\n\n\n\n

b)<\/strong> Nh\u1eadn x\u00e9t:<\/p>\n\n\n\n

– C\u00e2y b\u1ea1ch \u0111\u00e0n c\u00f3 chi\u1ec1u cao t\u1eeb 7,0cm \u0111\u1ebfn g\u1ea7n 8,5cm chi\u1ebfm t\u1ec9 l\u1ec7 ch\u1ee7 y\u1ebfu.<\/p>\n\n\n\n

– C\u00e1c c\u00e2y b\u1ea1ch \u0111\u00e0n cao t\u1eeb 6,5cm \u0111\u1ebfn g\u1ea7n 7,0cm ho\u1eb7c cao t\u1eeb 9,0cm \u0111\u1ebfn 9,5cm chi\u1ebfm t\u1ec9 l\u1ec7 r\u1ea5t \u00edt.<\/p>\n","protected":false},"excerpt":{"rendered":"

Tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi To\u00e1n 10 \u0110\u1ea1i s\u1ed1 B\u00e0i 1 trang 113: Ti\u1ec1n l\u00e3i (ngh\u00ecn \u0111\u1ed3ng) c\u1ee7a m\u1ed7i ng\u00e0y trong 30 ng\u00e0y \u0111\u01b0\u1ee3c kh\u1ea3o s\u00e1t \u1edf m\u1ed9t qu\u1ea7y b\u00e1n b\u00e1o H\u00e3y l\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp v\u1edbi c\u00e1c l\u1edbp nh\u01b0 sau: [29,5; 40,5), [40,5; 51,5), [51,5; 62,5), [62,5; 73,5), [73,5; 84,5), [84,5; […]<\/p>\n","protected":false},"author":12,"featured_media":44351,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1633],"tags":[],"yoast_head":"\n[Gi\u1ea3i To\u00e1n 10] Ch\u01b0\u01a1ng 5: Th\u1ed1ng k\u00ea\/ B\u00e0i 1: B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 v\u00e0 t\u1ea7n su\u1ea5t<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/giai-toan-10-chuong-5-thong-ke-bai-1-bang-phan-bo-tan-so-va-tan-suat\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Gi\u1ea3i To\u00e1n 10] Ch\u01b0\u01a1ng 5: Th\u1ed1ng k\u00ea\/ B\u00e0i 1: B\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n s\u1ed1 v\u00e0 t\u1ea7n su\u1ea5t\" \/>\n<meta property=\"og:description\" content=\"Tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi To\u00e1n 10 \u0110\u1ea1i s\u1ed1 B\u00e0i 1 trang 113: Ti\u1ec1n l\u00e3i (ngh\u00ecn \u0111\u1ed3ng) c\u1ee7a m\u1ed7i ng\u00e0y trong 30 ng\u00e0y \u0111\u01b0\u1ee3c kh\u1ea3o s\u00e1t \u1edf m\u1ed9t qu\u1ea7y b\u00e1n b\u00e1o H\u00e3y l\u1eadp b\u1ea3ng ph\u00e2n b\u1ed1 t\u1ea7n su\u1ea5t gh\u00e9p l\u1edbp v\u1edbi c\u00e1c l\u1edbp nh\u01b0 sau: [29,5; 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