{"id":18707,"date":"2024-03-26T10:20:20","date_gmt":"2024-03-26T10:20:20","guid":{"rendered":"https:\/\/soicau1016.minhngocxoso.com\/?p=18707"},"modified":"2024-03-26T10:20:20","modified_gmt":"2024-03-26T10:20:20","slug":"lo-xien-la-gi-huong-dan-cach-choi-xien-co-ban","status":"publish","type":"post","link":"https:\/\/soicaubachthu2nhay.com\/lo-xien-la-gi-huong-dan-cach-choi-xien-co-ban\/","title":{"rendered":"L\u00f4 xi\u00ean l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn c\u00e1ch ch\u01a1i Xi\u00ean C\u01a1 B\u1ea3n"},"content":{"rendered":"
Ch\u01a1i \u0111\u1ec1 th\u00ec ch\u1ec9 c\u00f3 1 ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i, nh\u01b0ng ch\u01a1i l\u00f4 th\u00ec l\u1ea1i c\u00f3 nhi\u1ec1u c\u00e1ch ch\u01a1i kh\u00e1c nhau trong \u0111\u00f3 l\u00f4 xi\u00ean \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i l\u1ef1a ch\u1ecdn. V\u1eady l\u00f4 xi\u00ean l\u00e0 g\u00ec? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u h\u01a1n v\u1ec1 l\u00f4 xi\u00ean v\u00e0 c\u00e1ch ch\u01a1i l\u00f4 xi\u00ean.<\/p>\n
L\u00f4 xi\u00ean c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi m\u1ed9t t\u00ean kh\u00e1c n\u1eefa l\u00e0 l\u00f4 x\u00e2u. \u0110\u00e2y v\u1ed1n l\u00e0 m\u1ed9t d\u1ea1ng kh\u00e1c c\u1ee7a ch\u01a1i l\u00f4, theo \u0111\u00f3 thay v\u00ec \u0111\u00e1nh m\u1ed9t s\u1ed1 ho\u1eb7c l\u00e0 nhi\u1ec1u s\u1ed1 ri\u00eang l\u1ebb kh\u00e1c nhau th\u00ec ng\u01b0\u1eddi ch\u01a1i l\u00f4 xi\u00ean s\u1ebd ch\u1ecdn ra 2 s\u1ed1 ho\u1eb7c l\u00e0 3, 4 s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh. Hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n h\u01a1n th\u00ec l\u00f4 xi\u00ean ch\u00ednh l\u00e0 m\u1ed9t x\u00e2u \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p t\u1eeb 2, 3 ho\u1eb7c 4 s\u1ed1 l\u00f4 v\u1edbi nhau \u0111\u1ec3 \u0111\u00e1nh.<\/p>\n
Tuy nhi\u00ean c\u1ea7n ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00e1c s\u1ed1 \u0111\u00f3 ph\u1ea3i ra \u0111\u1ed3ng lo\u1ea1t c\u00f9ng m\u1ed9t l\u01b0\u1ee3t th\u00ec ng\u01b0\u1eddi ch\u01a1i m\u1edbi d\u00e0nh chi\u1ebfn th\u1eafng. N\u1ebfu nh\u01b0 trong xi\u00ean \u0111\u00f3 m\u00e0 c\u00f3 1 s\u1ed1 b\u1ea1n \u0111\u00e1nh nh\u01b0ng kh\u00f4ng v\u1ec1 th\u00ec b\u1ea1n c\u0169ng s\u1ebd thua. Ch\u00ednh v\u00ec th\u1ebf m\u00e0 khi ch\u01a1i l\u00f4 xi\u00ean b\u1eaft bu\u1ed9c ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i c\u00f3 s\u1ef1 t\u00ednh to\u00e1n k\u1ef9 l\u01b0\u1ee1ng cao h\u01a1n \u0111\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c c\u00e1c con s\u1ed1 chu\u1ea9n. V\u00e0 m\u1ed9t khi \u0111\u00e3 tr\u00fang th\u00ec r\u1ea5t l\u1edbn.<\/p>\n
K\u1ebft qu\u1ea3 l\u00f4 l\u00e0 nh\u1eefng con s\u1ed1 cu\u1ed1i c\u00f9ng c\u1ee7a 27 gi\u1ea3i th\u01b0\u1edfng x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft. V\u1eady trong t\u1ed5ng s\u1ed1 100 s\u1ed1 t\u1eeb 00 \u0111\u1ebfn 99 th\u00ec 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%.<\/p>\n
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%.<\/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:<\/p>\n
X\u00e1c su\u1ea5t th\u1eafng l\u00f4 xi\u00ean 2 = 23,76% x 23,76% = 5,6%<\/p>\n
X\u00e1c su\u1ea5t th\u1eafng l\u00f4 xi\u00ean 3 = 23,76% x 23,76% x 23,76% = 1,34%<\/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.<\/p>\n
M\u1eb7c d\u00f9 x\u00e1c su\u1ea5t th\u1eafng l\u1edbn nh\u01b0ng ng\u01b0\u1eddi ch\u01a1i v\u1eabn ch\u1ecdn l\u00f4 xi\u00ean 4 \u0111\u1ec3 ch\u01a1i, v\u00ec sao v\u1eady? \u0110\u01a1n gi\u1ea3n v\u00ec x\u00e1c su\u1ea5t th\u1eafng c\u00e0ng th\u1ea5p th\u00ec t\u1ef7 l\u1ec7 tr\u1ea3 th\u01b0\u1edfng c\u00e0ng cao.<\/p>\n
\u2013 L\u00f4 xi\u00ean 2 \u0103n bao nhi\u00eau<\/p>\n
Ch\u1ecdn 2 s\u1ed1 l\u00f4, m\u1ed7i s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 t\u1eeb 00 \u0111\u1ebfn 99<\/p>\n
<\/p>\n
C\u00e1c d\u00f2 th\u1eafng l\u00f4 xi\u00ean 2: d\u1ef1a v\u00e0o 2 ch\u1eef s\u1ed1 cu\u1ed1i c\u00f9ng c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c gi\u1ea3i th\u01b0\u1edfng (27 l\u00f4 gi\u1ea3i c\u1ee7a \u0111\u00e0i H\u00e0 N\u1ed9i, 18 l\u00f4 gi\u1ea3i c\u1ee7a c\u00e1c \u0111\u00e0i Mi\u1ec1n Trung v\u00e0 Mi\u1ec1n Nam).<\/p>\n
C\u1ea3 2 s\u1ed1 l\u00f4 n\u00e0y ph\u1ea3i tr\u00f9ng v\u1edbi s\u1ed1 l\u00f4 b\u1ea1n ch\u1ecdn.<\/p>\n
V\u00ed d\u1ee5: l\u00f4 xi\u00ean 2: 20 \u2013 02 c\u1ee7a \u0111\u00e0i H\u00e0 N\u1ed9i. Hay l\u00f4 xi\u00ean 2: 52 \u2013 59 c\u1ee7a \u0111\u00e0i HCM<\/p>\n
\u2013 L\u00f4 xi\u00ean 3 \u0103n bao nhi\u00eau<\/p>\n
Ch\u1ecdn 3 s\u1ed1 l\u00f4, m\u1ed7i s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 t\u1eeb 00 \u0111\u1ebfn 99<\/p>\n
C\u00e1c d\u00f2 th\u1eafng l\u00f4 xi\u00ean 3: d\u1ef1a v\u00e0o 2 ch\u1eef s\u1ed1 cu\u1ed1i c\u00f9ng c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c gi\u1ea3i th\u01b0\u1edfng (27 l\u00f4 gi\u1ea3i c\u1ee7a \u0111\u00e0i H\u00e0 N\u1ed9i, 18 l\u00f4 gi\u1ea3i c\u1ee7a c\u00e1c \u0111\u00e0i Mi\u1ec1n Trung v\u00e0 Mi\u1ec1n Nam).<\/p>\n
C\u1ea3 3 s\u1ed1 l\u00f4 n\u00e0y ph\u1ea3i tr\u00f9ng v\u1edbi s\u1ed1 l\u00f4 b\u1ea1n ch\u1ecdn.<\/p>\n
V\u00ed d\u1ee5: l\u00f4 xi\u00ean 3: 20 \u2013 02 \u2013 04 c\u1ee7a \u0111\u00e0i H\u00e0 N\u1ed9i. Hay l\u00f4 xi\u00ean 3: 52 \u2013 59 \u2013 69 c\u1ee7a \u0111\u00e0i HCM<\/p>\n
\u2013 C\u00e1ch t\u00ednh l\u00f4 xi\u00ean 2 (\u0111\u00f4i): L\u00e0 ng\u01b0\u1eddi ch\u01a1i \u0111\u01b0\u1ee3c ch\u1ecdn 2 s\u1ed1 (2 con l\u00f4) kh\u00e1c nhau v\u00e0 k\u1ebft h\u1ee3p th\u00e0nh m\u1ed9t c\u1eb7p \u0111\u1ec3 \u0111\u00e1nh c\u01b0\u1ee3c. V\u1edbi h\u00ecnh th\u1ee9c n\u00e0y, t\u1ef7 l\u1ec7 \u0103n l\u00e0 1\/10 t\u1ee9c l\u00e0 b\u1ea1n c\u01b0\u1ee3c 1.000 \u0111\u1ed3ng cho c\u1eb7p xi\u00ean \u0111\u00f4i th\u00ec khi tr\u00fang b\u1ea1n s\u1ebd l\u0129nh 10.000 \u0111\u1ed3ng.<\/p>\n
\u2013 C\u00e1ch t\u00ednh l\u00f4 xi\u00ean 3: T\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch ch\u01a1i l\u00f4 xi\u00ean 2, ng\u01b0\u1eddi ch\u01a1i s\u1ebd ch\u1ecdn 2 con s\u1ed1 v\u00e0 t\u1ef7 l\u1ec7 \u0103n l\u00e0 1\/40. Ngh\u0129a l\u00e0 n\u1ebfu b\u1ea1n c\u01b0\u1ee3c 1.000 \u0111\u1ed3ng th\u00ec khi tr\u00fang s\u1ebd \u0103n 40.000 \u0111\u1ed3ng.<\/p>\n
\u2013 C\u00e1ch t\u00ednh l\u00f4 xi\u00ean 4: C\u00e1c ch\u01a1i l\u00f4 xi\u00ean 4 c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean, b\u1ea1n ph\u1ec9a ch\u1ecdn 4 con s\u1ed1 kh\u00e1c nhau, n\u1ebfu c\u1ea3 4 con l\u00f4 \u0111\u00f3 v\u1ec1 c\u00f9ng trong m\u1ed9t ng\u00e0y th\u00ec b\u1ea1n tr\u00fang th\u01b0\u1edfng. T\u1ef7 l\u1ec7 \u0103n l\u00e0 1\/100, t\u1ee9c c\u01b0\u1ee3c 1.000 \u0111\u1ed3ng n\u1ebfu tr\u00fang th\u00ec \u0103n 100.000 \u0111\u1ed3ng.<\/p>\n
Qua b\u00e0i vi\u1ebft tr\u00ean hi v\u1ecdng c\u00e1c b\u1ea1n \u0111\u00e3 n\u1eafm \u0111\u01b0\u1ee3c c\u00e1ch ch\u01a1i v\u00e0 kinh nghi\u1ec7m ch\u01a1i l\u00f4 xi\u00ean. Hi v\u1ecdng v\u1edbi nh\u1eefng th\u00f4ng tin tr\u00ean c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e1nh l\u00f4 xi\u00ean con n\u00e0o l\u00e0 \u0103n con \u0111\u00f3. Ch\u00fac c\u00e1c b\u1ea1n may m\u1eafn.<\/p>\n