- B\u1ea1n c\u00f3 th\u1ec3 tr\u00fang m\u1ed9t ho\u1eb7c nhi\u1ec1u con l\u00f4 v\u1edbi x\u00e1c su\u1ea5t \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 sau:<\/li><\/ul>\n\n\n\n
1 \u2013 (X\u00e1c su\u1ea5t t\u1ea1ch s\u1ed1 l\u00f4) = 1 \u2013 0,99^27 ( 27 l\u1ea7n quay s\u1ed1 \u0111\u1ec1u t\u1ea1ch) =23,7657%<\/p>\n\n\n\n
\u0110\u00e2y l\u00e0 x\u00e1c su\u1ea5t \u0111\u1ec3 b\u1ea1n tr\u00fang s\u1ed1 l\u00f4 b\u1ea5t k\u1ec3 tr\u00fang bao nhi\u00eau con.<\/p>\n\n\n\n
- X\u00e1c su\u1ea5t tr\u00fang 1 con \u0111\u1ec1: 1%<\/li>
- X\u00e1c su\u1ea5t tr\u00fang s\u1ed1 l\u00f4 xi\u00ean 2:<\/li><\/ul>\n\n\n\n
D\u1ef1 \u0111o\u00e1n XSMB th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c x\u00e1c su\u1ea5t kh\u00f4ng v\u1ec1 c\u1ea3 hai con = 0,98^27 = 57,957%.<\/p>\n\n\n\n
Tr\u01b0\u1eddng h\u1ee3p v\u1ec1 m\u1ed9t con trong c\u1eb7p xi\u00ean v\u1ec1 con th\u1ee9 nh\u1ea5t ho\u1eb7c con th\u1ee9 2 s\u1ebd c\u00f3 x\u00e1c su\u1ea5t:<\/p>\n\n\n\n
V\u1ec1 1 con = 2 * x\u00e1c su\u1ea5t \u0111\u1ec3 tr\u00fang 1 l\u00f4 * x\u00e1c su\u1ea5t kh\u00f4ng tr\u00fang s\u1ed1 l\u00f4 = 2 * 23,7657% * 0,99^27 =36,238%.<\/p>\n\n\n\n
X\u00e1c su\u1ea5t kh\u00f4ng tr\u00fang xi\u00ean 2 = X\u00e1c su\u1ea5t kh\u00f4ng v\u1ec1 c\u1ea3 2 s\u1ed1 + x\u00e1c su\u1ea5t v\u1ec1 1 s\u1ed1 = 57,957% + 36,238% = 94,195%.<\/p>\n\n\n\n
X\u00e1c su\u1ea5t tr\u00fang l\u00f4 xi\u00ean 2<\/strong> = 100% \u2013 X\u00e1c su\u1ea5t kh\u00f4ng tr\u00fang xi\u00ean 2= 100 \u2013 94,195% = 5,8%<\/p>\n\n\n\n
- T\u00ednh x\u00e1c su\u1ea5t cho l\u00f4 xi\u00ean 3<\/strong><\/li><\/ul>\n\n\n\n
T\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch t\u00ednh theo xi\u00ean 2 tr\u00ean nh\u01b0ng x\u1ea3y ra nhi\u1ec1u t\u00ecnh hu\u1ed1ng h\u01a1n. C\u1ee5 th\u1ec3:<\/p>\n\n\n\n
X\u00e1c su\u1ea5t kh\u00f4ng tr\u00fang xi\u00ean 3 = X\u00e1c su\u1ea5t kh\u00f4ng v\u1ec1 3 con + x\u00e1c su\u1ea5t v\u1ec1 1 con + x\u00e1c su\u1ea5t v\u1ec1 2 con = 0,97^27 + 3 * 23,7675% * 0,98^27 + 3 * 5,8% * 0,99^27 = 98,527%<\/p>\n\n\n\n
T\u1eeb \u0111\u00f3 t\u00ednh \u0111\u01b0\u1ee3c x\u00e1c su\u1ea5t tr\u00fang l\u00f4 xi\u00ean 3<\/strong> = 100% \u2013 98,527% = 1,473%<\/p>\n\n\n\n
Qua nh\u1eefng t\u00ednh to\u00e1n c\u1ee5 th\u1ec3 b\u00ean tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y \u0111\u1ec3 chi\u1ebfn th\u1eafng kh\u00f4ng ph\u1ea3i l\u00e0 d\u1ec5. B\u1edfi v\u1eady b\u1ea1n c\u1ea7n c\u00f3 nh\u1eefng kinh nghi\u1ec7m, k\u0129 n\u0103ng soi c\u1ea7u l\u00f4 \u0111\u1ec1 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro.<\/p>\n\n\n
![\"\"](\"https:\/\/soicau5062.minhngocxoso.com\/wp-content\/uploads\/2024\/05\/lo-xien-2-an-bao-nhieu-2-300x300.jpg\")
<\/p>\n\n\nThu\u1eadt to\u00e1n nu\u00f4i s\u1ed1 l\u00f4<\/h3>\n\n\n\n
B\u1ea1n s\u1ebd nu\u00f4i s\u1ed1 l\u00f4 trong kho\u1ea3ng n ng\u00e0y li\u00ean ti\u1ebfp \u0111\u1ec3 c\u00f3 th\u1ec3 ch\u1eafc ch\u1eafn \u0111\u1ea1t \u0111\u01b0\u1ee3c gi\u1ea3i th\u01b0\u1edfng. V\u1eady sau bao l\u00e2u c\u00f3 th\u1ec3 tr\u00fang s\u1ed1?<\/p>\n\n\n\n
B\u00e0i to\u00e1n n\u00e0y c\u1ea7n ng\u01b0\u1eddi am hi\u1ec3u t\u00ednh to\u00e1n x\u00e1c su\u1ea5t v\u00e0 th\u1ed1ng k\u00ea b\u1ed9 s\u1ed1 l\u1edbn m\u1edbi hi\u1ec3u \u0111\u01b0\u1ee3c. Tuy nhi\u00ean, c\u01a1 b\u1ea3n b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u c\u00e1ch d\u1ef1 \u0111o\u00e1n XSMB t\u00ednh to\u00e1n nh\u01b0 sau:<\/p>\n\n\n\n
G\u1ecdi A l\u00e0 bi\u1ebfn c\u1ed1 trong n ng\u00e0y v\u00e0 kh\u00f4ng tr\u00fang l\u1ea7n n\u00e0o.<\/p>\n\n\n\n
B l\u00e0 bi\u1ebfn c\u1ed1 tr\u00fang gi\u1ea3i \u00edt nh\u1ea5t 1 l\u1ea7n trong n ng\u00e0y<\/p>\n\n\n\n
X\u00e1c su\u1ea5t tr\u01b0\u1ee3t 27 s\u1ed1 l\u00f4 trong m\u1ed7i ng\u00e0y l\u00e0: 0,99^27. Do \u0111\u00f3:<\/p>\n\n\n\n
P(A) = 0,99^27n<\/p>\n\n\n\n
P(B) = 1\u2212P(A) = 1\u22120,99^27n<\/p>\n\n\n\n
P(B) > m \u21d4 0,99^27n < 1\u2212m \u21d4 n > log0,99(1\u2212m)\/27<\/p>\n\n\n\n
V\u1edbi m l\u00e0 x\u00e1c su\u1ea5t c\u1ea7n tr\u00fang th\u01b0\u1edfng (0,9999)<\/p>\n\n\n\n
T\u1eeb \u0111\u00f3 t\u00ednh \u0111\u01b0\u1ee3c > 33,9 hay ch\u01a1i kho\u1ea3ng 34 ng\u00e0y li\u00ean ti\u1ebfp m\u1ed9t s\u1ed1 l\u00f4, ch\u1eafc ch\u1eafn b\u1ea1n s\u1ebd tr\u00fang th\u01b0\u1edfng \u00edt nh\u1ea5t 1 l\u1ea7n.<\/p>\n\n\n\n
N\u1ebfu l\u00e0m theo v\u1eady s\u1ebd r\u1ea5t m\u1ea5t th\u1eddi gian v\u00e0 ti\u1ec1n b\u1ea1c. B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o nh\u1eefng d\u1ef1 \u0111o\u00e1n v\u1edbi x\u00e1c su\u1ea5t cao nh\u1ea5t ch\u00fang t\u00f4i cung c\u1ea5p. \u0110\u1ea3m b\u1ea3o th\u1eddi gian b\u1ea1n tr\u00fang l\u1edbn s\u1ebd kh\u00f4ng qu\u00e1 d\u00e0i.<\/p>\n\n\n
<\/p>\r\n
D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP MI\u1ec0N B\u1eaeC <\/span><\/h3>\r\n
![\"\"](\"\/wp-content\/uploads\/2024\/09\/vip_2.gif\")
D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP B\u1ea0CH TH\u1ee6 L\u00d4 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP B\u1ea0CH TH\u1ee6 L\u00d4 2 NH\u00c1Y MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP SONG TH\u1ee6 L\u00d4 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP B\u1ea0CH TH\u1ee6 L\u00d4 K\u00c9P MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP SONG TH\u1ee6 L\u00d4 K\u00c9P MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP B\u1ea0CH TH\u1ee6 \u0110\u1ec0 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP SONG TH\u1ee6 \u0110\u1ec0 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N \u0110\u1ec0 4 S\u1ed0 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N \u0110\u1ec0 6 S\u1ed0 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N \u0110\u1ec0 8 S\u1ed0 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N \u0110\u1ec0 10 S\u1ed0 MB H\u00d4M NAY<\/strong><\/a><\/span>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 4 S\u1ed0 MB H\u00d4M NAY<\/strong><\/a>\r\n<\/span><\/pre>\r\nD\u1ef0 \u0110O\u00c1N XSMB SI\u00caU CHU\u1ea8N <\/span><\/h3>\r\n
![\"\"](\"\/wp-content\/uploads\/2024\/09\/new-1.gif\")
D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 6 S\u1ed0 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 8 S\u1ed0 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 XI\u00caN 2 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 XI\u00caN 3 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 XI\u00caN 4 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP 3 C\u00c0NG MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N 3 C\u00c0NG 2 S\u1ed0 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP D\u00c0N L\u00d4 10 S\u1ed0 MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP \u0110\u1ec0 \u0110\u1ea6U \u0110U\u00d4I MB H\u00d4M NAY<\/span><\/strong><\/a>\r\n<\/pre>\r\nD\u1ef0 \u0110O\u00c1N XSMN SI\u00caU CHU\u1ea8N <\/span><\/h3>\r\n
D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP X\u1ec9u Ch\u1ee7 MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP GI\u1ea2I \u0110\u1eb6C BI\u1ec6T MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP GI\u1ea2I 8 MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP BAO L\u00d4 MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP C\u1eb7p X\u1ec9u Ch\u1ee7 MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP SONG TH\u1ee6 L\u00d4 MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP \u0110\u1ea6U \u0110U\u00d4I GI\u1ea2I 8 MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP \u0110\u1ea6U \u0110U\u00d4I \u0110\u1eb6C BI\u1ec6T MN H\u00d4M NAY<\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP L\u00d4 3 S\u1ed0 MN H\u00d4M NAY<\/strong><\/a>\r\n<\/pre>\r\nD\u1ef0 \u0110O\u00c1N XSMT SI\u00caU CHU\u1ea8N <\/span><\/h3>\r\n
D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP X\u1ec9u Ch\u1ee7 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP GI\u1ea2I \u0110\u1eb6C BI\u1ec6T MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP GI\u1ea2I 8 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP BAO L\u00d4 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP C\u1eb7p X\u1ec9u Ch\u1ee7 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP SONG TH\u1ee6 L\u00d4 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP \u0110\u1ea6U \u0110U\u00d4I GI\u1ea2I 8 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP \u0110\u1ea6U \u0110U\u00d4I \u0110\u1eb6C BI\u1ec6T MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n\r\n D\u1ef0 \u0110O\u00c1N SOI C\u1ea6U SI\u00caU V\u00cdP L\u00d4 3 S\u1ed0 MT H\u00d4M NAY<\/span><\/strong><\/a>\r\n<\/pre>\r\n","protected":false},"excerpt":{"rendered":"
- T\u00ednh x\u00e1c su\u1ea5t cho l\u00f4 xi\u00ean 3<\/strong><\/li><\/ul>\n\n\n\n