{"id":17823,"date":"2024-03-11T03:32:31","date_gmt":"2024-03-11T03:32:31","guid":{"rendered":"https:\/\/soicau4074.minhngocxoso.com\/huong-dan-cach-tinh-ty-le-trung-lo-de-chuan-xac-ty-le-an-cao\/"},"modified":"2024-03-11T03:32:31","modified_gmt":"2024-03-11T03:32:31","slug":"huong-dan-cach-tinh-ty-le-trung-lo-de-chuan-xac-ty-le-an-cao","status":"publish","type":"post","link":"https:\/\/bachthulodep.com\/huong-dan-cach-tinh-ty-le-trung-lo-de-chuan-xac-ty-le-an-cao\/","title":{"rendered":"h\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh t\u1ef7 l\u1ec7 tr\u00fang l\u00f4, \u0111\u1ec1 chu\u1ea9n x\u00e1c t\u1ef7 l\u1ec7 \u0103n cao"},"content":{"rendered":"

<\/p>\n
\n
\n
\n
\n
\n
<\/div>\n
\n
\n

H\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh t\u1ef7 l\u1ec7 tr\u00fang l\u00f4, \u0111\u1ec1 chu\u1ea9n x\u00e1c t\u1ef7 l\u1ec7 \u0103n cao<\/span><\/h1>\n
<\/div>\n

\"\u0111\u1ec9nh<\/p>\n<\/div>\n<\/div>\n

\n

L\u00f4, \u0111\u1ec1 l\u00e0. Tr\u00f2 ch\u01a1i c\u00e1. C\u01b0\u1ee3c m\u00e0 trong. \u0110\u00f3 ng\u01b0\u1eddi ch\u01a1i. S\u1ebd d\u1ef1 \u0111o\u00e1n k\u1ebft. Qu\u1ea3 x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft h\u1eb1ng ng\u00e0y. \u0110o\u00e1n 2 ho\u1eb7c 3 s\u1ed1. Cu\u1ed1i c\u1ee7a gi\u1ea3i. \u0110\u1eb7c bi\u1ec7t l\u00e0 \u0111o\u00e1n \u0111\u1ec1. \u0110o\u00e1n 2 ho\u1eb7c 3 s\u1ed1 cu\u1ed1i c\u1ee7a c\u00e1c. Gi\u1ea3i c\u00f2n l\u1ea1i l\u00e0 \u0111o\u00e1n l\u00f4. Nhi\u1ec1u ng\u01b0\u1eddi. Th\u01b0\u1eddng n\u00f3i vui r\u1eb1ng \u201cL\u00f4, \u0111\u1ec1 ch\u1ec9 l\u00e0 tr\u00f2 ch\u01a1i may r\u1ee7i\u201d. Qu\u1ea3 th\u1ef1c. Ta c\u0169ng kh\u00f4ng. Th\u1ec3 ph\u1ee7 nh\u1eadn \u0111i\u1ec1u. N\u00e0y l\u00e0 ho\u00e0n. To\u00e0n sai, tuy nhi\u00ean, b\u1ea5t c\u1ee9. Th\u1ee9 g\u00ec c\u0169ng \u0111\u1ec1u. C\u00f3 ngo\u1ea1i l\u1ec7. N\u1ebfu b\u1ea1n n\u1eafm \u0111\u01b0\u1ee3c. Nh\u1eefng quy t\u1eafc. Hay thu\u1eadt to\u00e1n. C\u01a1 b\u1ea3n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh <\/span>t\u1ef7 l\u1ec7 tr\u00fang l\u00f4<\/b>, \u0111\u1ec1 th\u00ec ch\u1eafc ch\u1eafn b\u1ea1n. S\u1ebd d\u1ec5 d\u00e0ng. H\u01a1n nh\u1eefng ng\u01b0\u1eddi. Ch\u1ec9 tin v\u00e0o s\u1ed1 ph\u1eadn may r\u1ee7i.<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u00fang l\u00f4, \u0111\u1ec1 l\u00e0 g\u00ec?<\/b><\/h2>\n

T\u1ef7 l\u1ec7 tr\u00fang l\u00f4<\/b>, t\u1ef7 l\u1ec7 tr\u00fang s\u1ed1 \u0111\u1ec1, t\u1ef7 l\u1ec7 tr\u00fang \u0111\u1ec1 l\u00e0 t\u1ef7 l\u1ec7 % xu\u1ea5t hi\u1ec7n con s\u1ed1 d\u1ef1 \u0111o\u00e1n \u0111\u00f3 trong m\u1ed7i k\u1ef3 quay.<\/span><\/p>\n

\"Nu\u00f4i<\/p>\n

T\u1ef7 l\u1ec7 tr\u00fang l\u00f4, tr\u00fang \u0111\u1ec1 ch\u00ednh x\u00e1c<\/figcaption><\/figure>\n

Th\u1ef1c t\u1ebf th\u00ec. Ai c\u0169ng mong. Mu\u1ed1n v\u00e0 khao kh\u00e1t. Chi\u1ebfn th\u1eafng. Trong tr\u00f2 ch\u01a1i n\u00e0y. Nh\u01b0ng t\u1ef7 l\u1ec7. Tr\u00fang s\u1ed1 l\u00f4, \u0111\u1ec1 l\u00e0. V\u00f4 c\u0169ng th\u1ea5p. Tuy nhi\u00ean, h\u1eb1ng ng\u00e0y, h\u1eb1ng gi\u1edd. Nhi\u1ec1u anh em s\u1ed1 l\u00f4, \u0111\u1ec1 v\u1eabn. N\u1ed5 li\u00ean t\u1ee5c nh\u01b0 ph\u00e1o.<\/span><\/p>\n

N\u1ebfu b\u1ea1n \u0111\u00e3. T\u1eebng th\u1eafc m\u1eafc r\u1eb1ng. L\u00e0m th\u1ebf n\u00e0o m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi c\u1ee9 chi\u1ebfn th\u1eafng li\u00ean t\u1ee5c nh\u01b0 v\u1eady, trong khi m\u00ecnh v\u1eabn d\u1eadm ch\u00e2n t\u1ea1i ch\u1ed7, th\u00ec b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n gi\u1ea3i \u0111\u00e1p th\u1eafc v\u00e0 t\u0103ng t\u1ef7 l\u1ec7 tr\u00fang l\u00f4, \u0111\u1ec1.<\/span><\/p>\n

\"Nu\u00f4i
C\u00e1ch t\u0103ng t\u1ef7 l\u1ec7 tr\u00fang l\u00f4, tr\u00fang \u0111\u1ec1<\/figcaption><\/figure>\n

C\u00e1ch t\u00ednh t\u1ef7 l\u1ec7 tr\u00fang l\u00f4<\/b><\/h2>\n

Th\u00f4ng th\u01b0\u1eddng, <\/span>t\u1ef7 l\u1ec7 tr\u00fang l\u00f4 <\/b>s\u1ebd cao h\u01a1n ch\u01a1i \u0111\u1ec1 v\u00ec l\u00f4 c\u00f3 27 gi\u1ea3i (\u0111\u00e0i x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc) v\u00e0 18 gi\u1ea3i (\u0111\u00e0i x\u1ed5 s\u1ed1 mi\u1ec1n Trung v\u00e0 mi\u1ec1n Nam). Tuy nhi\u00ean, \u0111\u1ec3 ch\u01a1i l\u00f4 th\u00ec c\u00e1c b\u1ea1n c\u1ea7n t\u00ednh <\/span>t\u1ef7 l\u1ec7 tr\u00fang l\u00f4<\/b> v\u00f4 c\u00f9ng c\u1ea9n th\u1eadn, t\u1ec9 m\u1ec9.<\/span><\/p>\n

\u2013 Khi b\u1ea1n \u00e1p d\u1ee5ng \u0111\u00e1nh m\u1ed9t con cho 27 gi\u1ea3i l\u00f4 th\u00ec t\u1ef7 l\u1ec7 th\u1eafng t\u1ed1i \u0111a l\u00e0 100%<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u01b0\u1ee3t khi \u0111\u00e1nh 1 con l\u00f4 l\u00e0 99%<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u01b0\u1ee3t khi \u0111\u00e1nh 2 con l\u00f4 l\u00e0 99% x 99% = x\u1ea5p x\u1ec9 98%<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u01b0\u1ee3t khi \u0111\u00e1nh 3 con l\u00f4 l\u00e0 99% x 99% x 99% = x\u1ea5p x\u1ec9 97% <\/span><\/p>\n

T\u01b0\u01a1ng t\u1ef1, ta c\u00f3 th\u1ec3 t\u00ednh t\u1ef7 l\u1ec7 tr\u01b0\u1ee3t 27 con l\u00f4 l\u00e0 99% ^(27) (T\u1ee9c nh\u00e2n 99% cho 27 l\u1ea7n 99%)<\/span><\/p>\n

\u2013 Nh\u01b0 v\u1eady, t\u1ef7 l\u1ec7 tr\u00fang 1 con l\u00f4 l\u00e0: <\/span>[1 \u2013 (99% ^ 27)] x 100 = x\u1ea5p x\u1ec9 23.7%<\/span><\/p>\n

T\u01b0\u01a1ng t\u1ef1,<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u00fang 2 con l\u00f4 l\u00e0 [1 \u2013 (98% ^ 27)] * 100 = 42%<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u00fang 3 con l\u00f4 l\u00e0 [1 \u2013 (97% ^ 27)] * 100 = 56%<\/span><\/p>\n

T\u1ef7 l\u1ec7 tr\u00fang 4 con l\u00f4 l\u00e0 [1 \u2013 (96% ^ 27)] * 100 = 67%<\/span><\/p>\n

=> T\u1eeb \u0111\u00e2y, ch\u00fang ta suy ra \u0111\u01b0\u1ee3c c\u00f4ng th\u1ee9c t\u00ednh t\u1ef7 l\u1ec7 tr\u00fang l\u00f4 l\u00e0: <\/span> [1 \u2013 [(100 \u2013 n)% m\u0169 27)] x 10 (n l\u00e0 s\u1ed1 l\u01b0\u1ee3ng con b\u1ea1n \u0111\u00e1nh)<\/b><\/p>\n

\u0110\u1ed1i<\/span> v\u1edbi \u0111\u00e0i x\u1ed5 s\u1ed1 mi\u1ec1n Trung v\u00e0 mi\u1ec1n Nam c\u00f3 18 gi\u1ea3i th\u00ec b\u1ea1n c\u0169ng \u00e1p d\u1ee5ng c\u00e1ch t\u00ednh t\u01b0\u01a1ng t\u1ef1 nh\u01b0 27 gi\u1ea3i, ch\u1ec9 c\u1ea7n thay s\u1ed1 v\u00e0o l\u00e0 \u0111\u01b0\u1ee3c.<\/span><\/p>\n

\"L\u01b0u
T\u00ednh t\u1ef7 l\u1ec7 tr\u00fang \u0111\u1ec1 ch\u00ednh x\u00e1c<\/figcaption><\/figure>\n

Ngo\u00e0i c\u00e1ch t\u00ecnh <\/span>t\u1ef7 l\u1ec7 tr\u00fang s\u1ed1 \u0111\u1ec1<\/b> theo to\u00e1n h\u1ecdc nh\u01b0 tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t s\u1ed1 c\u00e1ch kh\u00e1c d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 t\u0103ng t\u1ef7 l\u1ec7 tr\u00fang l\u00f4.<\/span><\/p>\n