{"id":18007,"date":"2024-05-11T18:37:27","date_gmt":"2024-05-11T18:37:27","guid":{"rendered":"https:\/\/soicau5024.minhngocxoso.com\/?p=18007"},"modified":"2024-05-11T18:37:27","modified_gmt":"2024-05-11T18:37:27","slug":"tim-hieu-ve-thong-ke-dan-dac-biet-va-cach-choi-sao-cho-hieu-qua","status":"publish","type":"post","link":"https:\/\/soicauxs168.com\/tim-hieu-ve-thong-ke-dan-dac-biet-va-cach-choi-sao-cho-hieu-qua\/","title":{"rendered":"t\u00ecm hi\u1ec3u v\u1ec1 th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t v\u00e0 c\u00e1ch ch\u01a1i sao cho hi\u1ec7u qu\u1ea3"},"content":{"rendered":"
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Hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u c\u00e1ch soi c\u1ea7u l\u00f4 kh\u00e1c nhau. Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng v\u00e0 ch\u1ecdn l\u1ef1a c\u00e1ch ch\u01a1i ph\u00f9 h\u1ee3p mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao cho m\u00ecnh. M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng t\u1ed3n t\u1ea1i kh\u00e1 l\u00e2u \u0111\u1ebfn hi\u1ec7n nay ph\u1ea3i k\u1ec3 \u0111\u1ebfn th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft c\u00e1ch ch\u01a1i v\u00e0 ch\u01a1i sao cho hi\u1ec7u qu\u1ea3? B\u00e0i vi\u1ebft sau \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n.<\/p>\n\n\n\n
\u0110\u1ec3 c\u00f3 th\u1ec3 ch\u01a1i theo c\u00e1ch n\u00e0y, tr\u01b0\u1edbc h\u1ebft ch\u00fang ta c\u1ea7n ph\u1ea3i bi\u1ebft kh\u00e1i ni\u1ec7m n\u00e0y l\u00e0 g\u00ec? C\u00e1ch ch\u01a1i n\u00e0y c\u00f3 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ra sao?<\/p>\n\n\n\n
Vi\u1ec7c th\u1ef1c hi\u1ec7n th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1eadp h\u1ee3p c\u00e1c c\u1eb7p s\u1ed1 kh\u00e1c nhau. Trong \u0111\u00f3, s\u1ed1 l\u01b0\u1ee3ng 10 c\u1eb7p s\u1ed1 tr\u1edf n\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t d\u00e0n. C\u00e1c con s\u1ed1 \u0111\u01b0\u1ee3c gh\u00e9p v\u1edbi nhau c\u00f3 quy lu\u1eadt v\u00e0 li\u00ean quan nh\u1ea5t \u0111\u1ecbnh. T\u1ef7 l\u1ec7 v\u1ec1 c\u00f9ng nhau c\u1ee7a c\u00e1c con s\u1ed1 trong c\u1eb7p s\u1ed1 l\u00e0 kh\u00e1 cao.<\/p>\n\n\n\n
Ch\u01a1i theo ki\u1ec3u th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t c\u00f3 t\u1ef7 l\u1ec7 th\u1eafng kh\u00e1 l\u1edbn so v\u1edbi nhi\u1ec1u lo\u1ea1i kh\u00e1c. S\u1edf d\u0129 nh\u01b0 v\u1eady l\u00e0 b\u1edfi d\u00e0n n\u00e0y \u0111\u01b0\u1ee3c t\u1eadp h\u1ee3p v\u1edbi nhi\u1ec1u c\u1eb7p s\u1ed1 kh\u00e1c nhau c\u00f3 li\u00ean h\u1ec7 m\u1eadt thi\u1ebft v\u1edbi nhau.<\/p>\n\n\n\n
B\u00ean c\u1ea1nh \u0111\u00f3, ti\u1ec1n v\u1ed1n nu\u00f4i theo ki\u1ec3u n\u00e0y kh\u00f4ng qu\u00e1 nhi\u1ec1u. Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 ph\u00e2n b\u1ed5 d\u00e0n tr\u1ea3i m\u00e0 kh\u00f4ng t\u1eadp trung v\u00e0o m\u1ed9t s\u1ed1 qu\u00e1 l\u1edbn. T\u1eeb \u0111\u00f3, t\u1ef7 l\u1ec7 \u0103n c\u0169ng cao h\u01a1n, m\u1ea5t th\u1ea5p h\u01a1n.<\/p>\n\n\n\n
V\u1edbi t\u1ef7 l\u1ec7 tr\u00fang cao, v\u1ed1n d\u00e0n \u0111\u1ec1u v\u00e0 m\u1ea5t \u00edt n\u00ean b\u00f9 l\u1ea1i l\u00e0 l\u00e3i kh\u00f4ng cao b\u1eb1ng c\u00e1c c\u00e1ch ch\u01a1i kh\u00e1c. Vi\u1ec7c \u0111\u1ea7u t\u01b0 v\u1ed1n \u00edt d\u1eabn \u0111\u1ebfn khi tr\u00fang s\u1ebd \u00edt h\u01a1n, m\u1ee9c l\u00e3i s\u1ebd nh\u1ecf h\u01a1n so v\u1edbi vi\u1ec7c \u0111\u1ea7u t\u01b0 v\u00e0o m\u1ed9t s\u1ed1.<\/p>\n\n\n\n
V\u1edbi vi\u1ec7c th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t ch\u00fang ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1c d\u00e0n s\u1ed1 th\u01b0\u1eddng ra k\u1ebft qu\u1ea3 nhi\u1ec1u. Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 c\u0103n c\u1ee9 v\u00e0o \u0111\u00f3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c con s\u1ed1 m\u00e0 m\u00ecnh c\u1ea7n \u0111\u00e1nh:<\/p>\n\n\n\n
\u0110\u00e2y l\u00e0 d\u00e0n m\u00e0 c\u00f3 c\u00e1c c\u1eb7p s\u1ed1 c\u00f3 t\u1ed5ng c\u1ee7a c\u00e1c con s\u1ed1 \u1edf m\u1ed7i c\u1eb7p b\u1eb1ng nhau. Ch\u00fang ta c\u00f3 th\u1ec3 l\u1ea5y v\u00ed d\u1ee5 \u1edf c\u1eb7p d\u00e0n s\u1ed1 sau \u0111\u00e2y: 02, 20, 39, 93, 48, 84, 57, 75, 66. T\u1ed5ng cu\u1ed1i c\u00f9ng c\u1ee7a m\u1ed7i c\u1eb7p \u0111\u1ec1u l\u00e0 2.<\/p>\n\n\n\n
Theo c\u00e1ch n\u00e0y th\u00ec trong d\u00e0n c\u00e1c c\u1eb7p s\u1ed1 c\u00f3 s\u1ed1 \u0111\u1ea7u ho\u1eb7c s\u1ed1 \u0111u\u00f4i gi\u1ed1ng nhau. C\u00e1ch n\u00e0y c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng.<\/p>\n\n\n\n
V\u00ed d\u1ee5 d\u00e0n theo \u0111\u1ea7u: 30, 31, 32, 33, 34, 35, 36, 37, 38, 39<\/p>\n\n\n\n
V\u00ed d\u1ee5 d\u00e0n theo \u0111u\u00f4i: 19, 29, 39, 49, 59, 69, 79, 89, 99.<\/p>\n\n\n\n
B\u1ed9 s\u1ed1 \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 trong d\u00e0n \u0111\u00f3 xu\u1ea5t hi\u1ec7n c\u00e1c c\u1eb7p s\u1ed1 l\u1eb7p nhau, \u0111\u1ed5i \u0111\u1ea7u \u0111u\u00f4i cho nhau. V\u00ed d\u1ee5 nh\u01b0 b\u1ed9 00 th\u00ec c\u00f3 d\u00e0n 00, 55, 05, 50, b\u1ed9 11 th\u00ec c\u00f3 11, 66, 16, 61\u2026<\/p>\n\n\n\n
Theo ch\u1ea1m th\u1ee9c l\u00e0 l\u1ea5y 1 s\u1ed1 l\u00e0m chu\u1ea9n. Trong \u0111\u00f3, c\u00e1c c\u1eb7p s\u1ed1 \u0111\u1ec1m ch\u1ee9a con s\u1ed1 chu\u1ea9n \u0111\u00f3. V\u00ed d\u1ee5 d\u00e0n ch\u1ea1m 1 c\u00f3 d\u00e0n l\u00e0: 01, 10, 11, 12, 21, 13, 31, 14, 41, 15, 51, 16, 61, 17, 71, 18, 81, 19, 91.<\/p>\n\n\n\n
V\u1edbi ki\u1ec3u ch\u01a1i truy\u1ec1n th\u1ed1ng n\u00e0y, ch\u00fang ta c\u00f3 nhi\u1ec1u c\u00e1ch ch\u01a1i kh\u00e1c nhau. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec1u c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ri\u00eang m\u00ecnh, ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 ch\u1ecdn l\u1ef1a sao cho ph\u00f9 h\u1ee3p v\u00e0 \u0111em l\u1ea1i hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n\n\n
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V\u1edbi c\u00e1ch ch\u01a1i n\u00e0y, ch\u00fang ta c\u1ea7n ph\u1ea3i th\u1ed1ng k\u00ea c\u00e1c s\u1ed1 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t trong x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc. C\u1ea7n t\u1ed1i thi\u1ec3u \u0111\u1ee7 5 s\u1ed1 trong v\u00f2ng n\u1eeda n\u0103m tr\u1edf v\u1ec1 tr\u01b0\u1edbc. Sau \u0111\u00f3, ti\u1ebfn h\u00e0nh x\u1ebfp ch\u00fang l\u1ea7n l\u01b0\u1ee3t theo th\u1ee9, theo tu\u1ea7n nh\u1ea5t \u0111\u1ecbnh. C\u00e1ch th\u1ed1ng k\u00ea v\u00e0 \u0111\u00e1nh d\u00e0n nh\u01b0 sau:<\/p>\n\n\n\n
X\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u1ea7u \u0111\u1eb7c bi\u1ec7t \u1edf gi\u1ea3i 3<\/p>\n\n\n\n
Khi \u1edf gi\u1ea3i 2 \u0111\u00e3 xu\u1ea5t hi\u1ec7n ch\u1ea1m \u0111\u1ec1 s\u1ebd \u0103n b\u00f3ng ho\u1eb7c \u0103n th\u1eb3ng \u1edf gi\u1ea3i ng\u00e0y h\u00f4m sau. Lo\u1ea1i n\u00e0y c\u00f3 th\u1eddi gian d\u00e0i v\u00e0 ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ph\u1ea3i bi\u1ebft c\u00e1ch b\u1eaft ch\u1ea1m cho chu\u1ea9n x\u00e1c nh\u1ea5t.<\/p>\n\n\n\n
Gh\u00e9p d\u00e0n \u0111\u1ec1 gi\u1ea3i 5<\/p>\n\n\n\n
Ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ecdn ra c\u00e1c con s\u1ed1 sau c\u00f9ng c\u1ee7a 5 c\u1eb7p s\u1ed1 gi\u1ea3i x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc v\u1ec1 \u0111\u00e3 th\u1ed1ng k\u00ea \u1edf tr\u00ean. Sau \u0111\u00f3 ti\u1ebfn h\u00e0nh gh\u00e9p v\u1edbi c\u00e1c ch\u1ea1m c\u1ee7a c\u00e1c gi\u1ea3i 5 v\u00e0 3. T\u1eeb \u0111\u00f3, ch\u00fang ta s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t d\u00e0n k\u1ebft qu\u1ea3 \u0111\u1ec1 c\u00f3 th\u1ec3 v\u1ec1 cho ng\u00e0y t\u1edbi. C\u00e1ch n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh quanh n\u0103m.<\/p>\n\n\n\n
Nu\u00f4i \u0111\u1ea7u 0 v\u00e0 \u0111u\u00f4i 0:<\/p>\n\n\n\n
Tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 khi \u1edf gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u00f3 xu\u1ea5t hi\u1ec7n s\u1ed1 0 \u1edf gi\u1eefa. L\u00fac n\u00e0y, s\u1ebd l\u00e0 d\u1ea5u hi\u1ec7u \u0111\u1ec3 ch\u00fang ta bi\u1ebft \u0111\u01b0\u1ee3c s\u1eafp v\u1ec1 con s\u1ed1 c\u00f3 \u0111\u1ea7u 0 ho\u1eb7c \u0111u\u00f4i 0.<\/p>\n\n\n\n
C\u00e1ch n\u00e0y l\u00e0 ch\u1ecdn l\u1ef1a s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc ng\u00e0y th\u1ee9 2 \u0111em c\u1ed9ng v\u1edbi s\u1ed1 c\u1ee7a ng\u00e0y th\u1ee9 3. T\u1ed5ng \u0111\u01b0\u1ee3c s\u1ebd l\u00e0 con s\u1ed1 chu\u1ea9n \u0111\u1ec3 ti\u1ebfn h\u00e0nh x\u00e1c \u0111\u1ecbnh c\u1eb7p s\u1ed1 c\u1ee7a 5 ng\u00e0y ti\u1ebfp theo:<\/p>\n\n\n\n
Th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t theo t\u1ed5ng<\/p>\n\n\n\n
V\u1edbi c\u00e1ch n\u00e0y, b\u1ea1n s\u1ebd l\u1ea5y con s\u1ed1 t\u1ed5ng c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a tu\u1ea7n tr\u01b0\u1edbc \u0111\u00f3 \u0111\u1ec3 l\u00e0m ch\u1ea1m chu\u1ea9n. Sau \u0111\u00f3 ti\u1ebfn h\u00e0nh gh\u00e9p v\u00e0o \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c d\u00e0n lu\u00f4n trong tu\u1ea7n ti\u1ebfp theo.<\/p>\n\n\n\n
Nu\u00f4i t\u1ed5ng chu\u1ea9n trong tu\u1ea7n:<\/p>\n\n\n\n
L\u1ef1a ch\u1ecdn con s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ng\u00e0y th\u1ee9 2. Ti\u1ebfn h\u00e0nh \u0111\u1ed5i b\u00f3ng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c t\u1ed5ng chu\u1ea9n \u0111\u1ec3 nu\u00f4i tu\u1ea7n k\u1ebf ti\u1ebfp.<\/p>\n\n\n\n
V\u1edbi c\u00e1c th\u00f4ng tin k\u1ec3 tr\u00ean,ch\u00fang ta \u0111\u00e3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 th\u1ed1ng k\u00ea d\u00e0n \u0111\u1eb7c bi\u1ec7t. B\u00ean c\u1ea1nh \u0111\u00f3 l\u00e0 c\u00e1c c\u00e1ch ch\u01a1i kh\u00e1c nhau \u0111\u1ec3 \u00e1p d\u1ee5ng \u0111\u00e1nh sao cho k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c nh\u1ea5t. Tr\u00ean c\u01a1 s\u1edf \u0111\u00f3, b\u1ea1n s\u1ebd \u0111\u00e1nh th\u1eafng \u0111\u01b0\u1ee3c nhi\u1ec1u h\u01a1n<\/p>\n\n\n
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