Ch\u01a1i l\u00f4 \u0111\u1ec1 l\u00e2u ng\u00e0y b\u1ea1n \u0111\u00e3 hi\u1ec3u \u0111\u01b0\u1ee3c h\u1ebft c\u00e1c c\u00e1ch soi c\u1ea7u ch\u01b0a. \u0110\u00e1nh l\u00f4 \u0111\u1ec1 x\u1ed5 s\u1ed1 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o may m\u1eafn, n\u00f3 d\u1ef1a v\u00e0o ph\u1ea7n l\u1edbn c\u00e1ch soi c\u1ea7u c\u1ee7a b\u1ea1n. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n n\u1eafm r\u00f5 h\u01a1n c\u00e1ch soi c\u1ea7u l\u00f4 xi\u00ean, c\u1ee5 th\u1ec3 l\u00e0 soi c\u1ea7u l\u00f4 xi\u00ean 2, l\u00f4 nhi\u1ec1u ng\u01b0\u1eddi ch\u1ecdn \u0111\u00e1nh.<\/span><\/p>\n Tr\u01b0\u1edbc khi \u0111\u1ebfn v\u1edbi soi c\u1ea7u l\u00f4 xi\u00ean 2 ta h\u00e3y l\u00e0m r\u00f5 x\u00e1c su\u1ea5t, s\u1ebd c\u00f3 m\u1ed9t v\u00e0i ph\u00e9p t\u00ednh sau<\/span><\/p>\n Nh\u01b0 b\u1ea1n \u0111\u00e3 bi\u1ebft k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc hi\u1ec7n t\u1ea1i c\u00f3 27 gi\u1ea3i, t\u00ednh ra \u0111\u00e1nh l\u00f4 th\u00ec x\u00e1c su\u1ea5t s\u1ebd l\u00e0 1% cho 27 c\u01a1 h\u1ed9i. T\u00ednh trung b\u00ecnh ra th\u00ec ch\u00fang ta s\u1ebd s\u1edf h\u1eefu kho\u1ea3ng 21,5% x\u00e1c su\u1ea5t \u0111\u1ec3 \u0111\u00e1nh \u0111\u1ec1.<\/span><\/p>\n D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00f4ng th\u1ee9c x\u00e1c su\u1ea5t l\u00f4 v\u1ec1:<\/span><\/p>\n \u0110\u1ec1 (Xi\u00ean m\u1ed9t), x\u00e1c su\u1ea5t tr\u00fang = 21,5%<\/span><\/p>\n L\u00f4 xi\u00ean 2, x\u00e1c su\u1ea5t tr\u00fang = 21,5% x 21,5% = 0,0462 \u2013 Ngh\u0129a l\u00e0 x\u00e1c su\u1ea5t \u0111\u00e1nh tr\u00fang ch\u1ec9 s\u1edf h\u1eefu 4,6%.<\/span><\/p>\n L\u00f4 xi\u00ean 3 , x\u00e1c su\u1ea5t tr\u00fang = 21,5% x 21,5% x 21,5% = 00994 \u2013 Ngh\u0129a l\u00e0 x\u00e1c su\u1ea5t tr\u00fang ch\u1ec9 v\u1edbi 0,994% (ch\u01b0a \u0111\u1ebfn 1%)<\/span><\/p>\n Trong t\u1ed5ng s\u1ed1 100 s\u1ed1 t\u1eeb 00 \u0111\u1ebfn 99 c\u00f3 27 s\u1ed1 tr\u00f9ng v\u1edbi k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft mi\u1ec1n B\u1eafc. V\u1eady x\u00e1c su\u1ea5t tr\u00fang l\u00f4 s\u1ebd l\u00e0 27%. N\u1ebfu tr\u01b0\u1eddng h\u1ee3p gi\u1ea3i th\u01b0\u1edfng x\u1ed5 s\u1ed1 kh\u00e1c nhau m\u00e0 s\u1ed1 cu\u1ed1i tr\u00f9ng nhau th\u00ec x\u00e1c su\u1ea5t tr\u00fang l\u00f4 ch\u1ec9 c\u00f2n l\u00e0 23,76%.<\/span><\/p>\n T\u1eeb x\u00e1c su\u1ea5t tr\u00fang l\u00f4 s\u1ebd t\u00ednh ra \u0111\u01b0\u1ee3c x\u00e1c su\u1ea5t th\u1eafng l\u00f4 xi\u00ean nh\u01b0 sau:<\/span><\/p>\n X\u00e1c su\u1ea5t th\u1eafng l\u00f4 xi\u00ean 2 = 23,76% x 23,76% = 5,6%<\/span><\/p>\n X\u00e1c su\u1ea5t th\u1eafng l\u00f4 xi\u00ean 3 = 23,76% x 23,76% x 23,76% = 1,34%<\/span><\/p>\n X\u00e1c su\u1ea5t th\u1eafng xi\u00ean 4 = 23,76% x 23,76% x 23,76% x 23,76% = 0,32%. V\u1edbi x\u00e1c su\u1ea5t nh\u1ecf h\u01a1n 1% th\u00ec t\u1ef7 l\u1ec7 th\u1eafng c\u00f2n kh\u00f3 h\u01a1n c\u1ea3 tr\u00fang \u0111\u1ec1.<\/span><\/p>\n Nh\u1eefng ng\u01b0\u1eddi c\u00f3 kinh nghi\u1ec7m \u0111\u1ec1u ph\u1ea3i nghi\u00ean c\u1ee9u, c\u00f3 b\u1ea3ng th\u1ed1ng k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c cao nh\u1ea5t, sau \u0111\u00f3 h\u1ecd s\u1ebd soi c\u1ea7u l\u00f4 xi\u00ean 2 ra nh\u01b0 sau:<\/span><\/p>\n Khi b\u1ea1n th\u1ed1ng k\u00ea b\u1ea1n s\u1ebd th\u1ea5y c\u00f3 nh\u1eefng con s\u1ed1 m\u00f4\u0323t khi \u0111a\u0303 xu\u00e2\u0301t hi\u00ea\u0323n thi\u0300 r\u00e2\u0301t hay \u0111i cu\u0300ng nhau kh\u1ea3 n\u0103ng cao h\u00f4m sau s\u1ebd v\u1ec1.<\/span><\/p>\n Ba\u0323n nh\u1eadn th\u00e2\u0301y co\u0301 030 thi\u0300 xa\u0301c su\u00e2\u0301t nga\u0300y h\u00f4m sau se\u0303 co\u0301 1 con s\u00f4\u0301 na\u0300y la\u0323i ti\u00ea\u0301p tu\u0323c xu\u00e2\u0301t hi\u00ea\u0323n l\u00e0 r\u1ea5t cao.<\/span><\/p>\n H\u00f4m tr\u01b0\u01a1\u0301c xu\u00e2\u0301t hi\u00ea\u0323n 72 kha\u0309 n\u0103ng cao h\u00f4m sau co\u0301 27.<\/span><\/p>\n Ca\u0301c con l\u00f4 hay ra ha\u0300ng nga\u0300y cu\u0300ng nhau la\u0300 89, 75, 79, 65, 73<\/span><\/p>\n Ca\u0301c c\u0103\u0323p l\u00f4 hay \u0111i cu\u0300ng nhau la\u0300 73-10, 22-25 ho\u0103\u0323c 52, 11-44, 33-66<\/span><\/p>\n L\u00f4 ra ca\u0309 c\u0103\u0323p 02-20, 05-50 thi\u0300 h\u00f4m sau 1 con se\u0303 la\u0300 v\u00ea\u0300.<\/span><\/p>\n Sau khi xem b\u1ea3ng th\u1ed1ng k\u00ea th\u00e2\u0301y k\u00ea\u0301t qua\u0309 c\u00f3 xu\u00e2\u0301t hi\u00ea\u0323n ca\u0309 \u0111\u00e2\u0300u c\u00e2m va\u0300 \u0111u\u00f4i c\u00e2m c\u00f9ng m\u00f4\u0323t con s\u00f4\u0301 thi\u0300 xa\u0301c su\u00e2\u0301t r\u00e2\u0301t cao nga\u0300y h\u00f4m sau nh\u01b0\u0303ng con s\u00f4\u0301 co\u0301 \u0111o\u0301 se\u0303 xu\u00e2\u0301t hi\u00ea\u0323n.<\/span><\/p>\n \u0110\u00e2\u0300u c\u00e2m kh\u00f4ng v\u00ea\u0300 la\u0300 0 thi\u0300 b\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn s\u1ed1 80-60-90; 1, 2 thi\u0300 x\u00e1c su\u1ea5t se\u0303 v\u00ea\u0300 la\u0300 21-71-01; 3 ho\u1eb7c 5 thi\u0300 ba\u0323n co\u0301 th\u00ea\u0309 ngh\u0129 \u0111\u1ebfn nh\u01b0\u0303ng s\u00f4\u0301 l\u00f4 nh\u01b0 53-35-67-43; 4 thi\u0300 nhi\u00ea\u0300u ng\u01b0\u01a1\u0300i la\u0323i hay cho\u0323n nh\u01b0\u0303ng s\u00f4\u0301 l\u00f4 45-48-80;<\/span><\/p>\n T\u01b0\u01a1ng t\u1ef1 6 la\u0300 06-66; 7 l\u00e0 70-57; 8, 9 l\u00e0 68-98-09.<\/span><\/p>\n B\u1ea1n th\u1ea5y \u0111\u00e2\u0300u \u2013 \u0111u\u00f4i c\u00e2m \u0111\u00ea\u0300u la\u0300 1 thi\u0300 nga\u0300y mai co\u0301 th\u00ea\u0309 d\u01b0\u0303 \u0111oa\u0301n la\u0300 18-81-75.<\/span><\/p>\n L\u00f4 \u0111\u00e2\u0300u 2 ho\u0103\u0323c \u0111u\u00f4i 5 c\u00e2m thi\u0300 h\u00f4m sau d\u01b0\u0323 la\u0300 se\u0303 co\u0301 25 ho\u0103\u0323c 52 v\u1ec1.<\/span><\/p>\n H\u1ecd c\u00f3 c\u00e1ch soi c\u1ea7u l\u00f4 xi\u00ean 2 d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a ng\u00e0y th\u1ee9 2 v\u00e0 th\u1ee9 7. V\u1edbi ng\u00e0y th\u1ee9 2, n\u1ebfu k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a gi\u1ea3i 4.4 v\u00e0 gi\u1ea3i 6.3 l\u00e0 m\u1ed9t d\u00e3y s\u1ed1 khuy\u1ebft gi\u1eefa th\u00ec ta l\u1ea5y s\u1ed1 khuy\u1ebft \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c s\u1ed1 l\u00f4 \u0111\u1ea7u ti\u00ean. Th\u01b0\u0301 2 th\u01b0\u01a1\u0300ng hay cho v\u00ea\u0300 nh\u01b0\u0303ng s\u00f4\u0301 nh\u01b0 87-67-43.<\/span><\/p>\n Sau \u0111\u00f3 d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 c\u1ee7a ng\u00e0y th\u1ee9 7, n\u1ebfu gi\u1ea3i 3.4 v\u00e0 gi\u1ea3i 4.4 c\u0169ng t\u1ea1o ra d\u00e3y s\u1ed1 khuy\u1ebft gi\u1eefa th\u00ec ta l\u1ea5y s\u1ed1 khuy\u1ebft gi\u1eefa \u0111\u00f3 \u0111\u1ec3 \u0111\u01b0\u1ee3c s\u1ed1 l\u00f4 th\u1ee9 2. \u0110\u00e1nh 2 s\u1ed1 l\u00f4 \u0111\u00f3 th\u00e0nh c\u1eb7p l\u00f4 xi\u00ean 2 cho ng\u00e0y h\u00f4m sau s\u1ebd c\u00f3 t\u1ec9 l\u1ec7 tr\u00fang r\u1ea5t cao.<\/span><\/p>\n Con l\u00f4 33 theo nh\u01b0 soi c\u00e2\u0300u thi\u0300 nhi\u00ea\u0300u ng\u01b0\u01a1\u0300i th\u00e2\u0301y hay xu\u00e2\u0301t hi\u00ea\u0323n va\u0300o 2 nga\u0300y cu\u00f4\u0301i tu\u00e2\u0300n va\u0300 2 nga\u0300y \u0111\u00e2\u0300u tu\u00e2\u0300n.<\/span><\/p>\n H\u00e3y t\u00ecm hi\u1ec3u ph\u00e2n t\u00edch th\u1eadt k\u1ef9 b\u1ea1n n\u00ean theo con g\u00ec, kh\u00f4ng n\u00ean theo con g\u00ec, con n\u00e0o \u0111\u00e1nh \u00edt, con n\u00e0o \u0111\u00e1nh m\u1ea1nh tay l\u1ea5y l\u1eddi. C\u1ea7n c\u00e2n \u0111\u1ed1i ng\u00e2n s\u00e1ch sao cho h\u1ee3p l\u00fd \u0111\u1ec3 c\u00f3 l\u1ee3i cho b\u1ea3n th\u00e2n nh\u1ea5t.<\/span><\/p>\n<\/div>\n <\/main><\/div>\nX\u00e1c su\u1ea5t \u0103n l\u00f4 xi\u00ean<\/span><\/h3>\n
C\u00e1ch soi c\u1ea7u l\u00f4 xi\u00ean 2 hi\u1ec7u qu\u1ea3<\/span><\/h3>\n
<\/p>\n
Soi c\u1ea7u l\u00f4 xi\u00ean 2 qua nh\u01b0\u0303ng con s\u00f4\u0301 hay ra cu\u0300ng nhau<\/span><\/h3>\n
Soi c\u1ea7u l\u00f4 xi\u00ean 2 qua \u0111\u00e2\u0300u c\u00e2m \u0111u\u00f4i c\u00e2m<\/span><\/h3>\n
Soi c\u1ea7u l\u00f4 xi\u00ean 2 d\u1ef1a v\u00e0o th\u1ee9<\/span><\/h3>\n
<\/p>\n
K\u1ebft lu\u1eadn<\/span><\/h3>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n cao c\u1ea5p 3 mi\u1ec1n si\u00eau v\u00edp<\/span><\/strong><\/h3>\n
\u00a0soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n mi\u1ec1n b\u1eafc super vip <\/span><\/h3>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n b\u1ea1ch th\u1ee7 l\u00f4 2 nh\u00e1y mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n b\u1ea1ch th\u1ee7 l\u00f4 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n song th\u1ee7 l\u00f4 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n b\u1ea1ch th\u1ee7 l\u00f4 k\u00e9p mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n song th\u1ee7 l\u00f4 k\u00e9p mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n b\u1ea1ch th\u1ee7 \u0111\u1ec1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n song th\u1ee7 \u0111\u1ec1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n \u0111\u1ec1 4 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n \u0111\u1ec1 6 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n \u0111\u1ec1 8 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n \u0111\u1ec1 10 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 4 s\u1ed1 mi\u1ec1n b\u1eafc <\/a><\/strong><\/p>\n<\/div>\n
\u00a0soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n mi\u1ec1n b\u1eafc<\/span><\/h3>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 6 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 8 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
ssoi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 xi\u00ean 2 mi\u1ec1n b\u1eafc <\/a><\/strong><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 xi\u00ean 3 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 xi\u00ean 4 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n 3 c\u00e0ng mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n 3 c\u00e0ng 2 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n d\u00e0n l\u00f4 10 s\u1ed1 mi\u1ec1n b\u1eafc <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i mi\u1ec1n b\u1eafc <\/a><\/strong><\/p>\n<\/div>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n mi\u1ec1n nam<\/span><\/h3>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n x\u1ec9u ch\u1ee7 mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n gi\u1ea3i 8 mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n bao l\u00f4 mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n c\u1eb7p x\u1ec9u ch\u1ee7 mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n song th\u1ee7 l\u00f4 mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n \u0111\u1ea7u \u0111u\u00f4i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n nam <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n l\u00f4 3 s\u1ed1 mi\u1ec1n nam <\/a><\/strong><\/p>\n<\/div>\n
\u00a0soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n mi\u1ec1n trung<\/span><\/h3>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n x\u1ec9u ch\u1ee7 mi\u1ec1n trung <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n trung <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n gi\u1ea3i 8 mi\u1ec1n trung <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n bao l\u00f4 mi\u1ec1n trung <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n c\u1eb7p x\u1ec9u ch\u1ee7 mi\u1ec1n trung <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n song th\u1ee7 l\u00f4 mi\u1ec1n trung <\/strong><\/a><\/p>\n
soi c\u1ea7u \u0111\u1eb9p chu\u1ea9n \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mi\u1ec1n trung <\/strong><\/a><\/p>\n
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