{"id":21793,"date":"2023-12-06T02:55:27","date_gmt":"2023-12-06T02:55:27","guid":{"rendered":"https:\/\/masterskills.org\/blog\/binh-quan-gia-quyen-la-gi-ung-dung-va-cach-tinh-chuan-xac.html"},"modified":"2023-12-22T04:56:16","modified_gmt":"2023-12-21T21:56:16","slug":"binh-quan-gia-quyen-la-gi-ung-dung-va-cach-tinh-chuan-xac","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/binh-quan-gia-quyen-la-gi-ung-dung-va-cach-tinh-chuan-xac.html","title":{"rendered":"B\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec? \u1ee8ng d\u1ee5ng v\u00e0 c\u00e1ch t\u00ednh chu\u1ea9n x\u00e1c"},"content":{"rendered":"
\n
<\/figure>\n

B\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec m\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean trong k\u1ebf to\u00e1n? \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh gi\u00e1 c\u01a1 b\u1ea3n m\u00e0 b\u1ea5t k\u1ef3 ai h\u1ecdc k\u1ebf to\u00e1n ho\u1eb7c tham gia l\u0129nh v\u1ef1c kinh doanh \u0111\u1ec1u ph\u1ea3i bi\u1ebft. C\u1ee5 th\u1ec3 th\u00ec \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng th\u1ebf n\u00e0o, h\u00e3y t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n qua b\u00e0i vi\u1ebft sau \u0111\u00e2y nh\u00e9.\u00a0<\/p>\n

B\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

B\u00ecnh qu\u00e2n gia quy\u1ec1n trong ti\u1ebfng Anh \u0111\u01b0\u1ee3c g\u1ecdi b\u1eb1ng thu\u1eadt ng\u1eef \u201cWeighted Average\u201d\u00a0(hay\u00a0Weighted Mean), n\u00f4m na l\u00e0 ch\u1ec9 s\u1ed1 trung b\u00ecnh c\u00f3 tr\u1ecdng s\u1ed1.<\/p>\n

B\u00ecnh qu\u00e2n gia quy\u1ec1n, c\u00f2n g\u1ecdi trung b\u00ecnh c\u1ed9ng gia quy\u1ec1n (hay trung b\u00ecnh c\u1ed9ng c\u00f3 tr\u1ecdng s\u1ed1), l\u00e0 gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ed9ng th\u1ec3 hi\u1ec7n s\u1ef1 quan tr\u1ecdng c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed trong t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 \u0111\u00f3. M\u1ed7i ph\u1ea7n t\u1eed trong t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 1 gi\u00e1 tr\u1ecb quan s\u00e1t, g\u1eafn v\u1edbi m\u1ed9t tr\u1ecdng s\u1ed1. Tr\u1ecdng s\u1ed1 ch\u00ednh l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng ph\u1ea3n \u00e1nh \u0111\u1ed9 tin c\u1eady, \u0111\u1ea1i l\u01b0\u1ee3ng ch\u1ec9 t\u1ea7n su\u1ea5t l\u1eb7p l\u1ea1i ho\u1eb7c \u0111\u1ea1i l\u01b0\u1ee3ng d\u00f9ng \u0111\u1ec3 so s\u00e1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c th\u00f4ng tin ph\u1ee5c v\u1ee5 cho vi\u1ec7c t\u00ednh to\u00e1n.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a b\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, trong m\u1ed9t t\u1eadp s\u1ed1 d\u00f9ng \u0111\u1ec3 t\u00ednh b\u00ecnh qu\u00e2n gia quy\u1ec1n, gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed7i ph\u1ea7n t\u1eed c\u00f3 vai tr\u00f2 quan tr\u1ecdng kh\u00e1c nhau v\u00e0 \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi m\u1ed9t tr\u1ecdng s\u1ed1. B\u1eaft ngu\u1ed3n t\u1eeb b\u1ea3n ch\u1ea5t n\u00e0y, ph\u01b0\u01a1ng ph\u00e1p t\u00ednh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p nh\u01b0:<\/p>\n

\u2013\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u1ee8ng d\u1ee5ng t\u00ednh to\u00e1n b\u00ecnh qu\u00e2n trong to\u00e1n h\u1ecdc th\u1ed1ng k\u00ea;<\/p>\n

\u2013\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u1ee8ng d\u1ee5ng t\u00ednh to\u00e1n gi\u00e1 h\u00e0ng h\u00f3a, gi\u00e1 tr\u1ecb h\u00e0ng xu\u1ea5t kh\u1ea9u\/nh\u1eadp kh\u1ea9u, gi\u00e1 nguy\u00ean li\u1ec7u d\u00f9ng trong s\u1ea3n xu\u1ea5t, gi\u00e1 tr\u1ecb h\u00e0ng t\u1ed3n kho\u2026 trong c\u00e1c l\u0129nh v\u1ef1c k\u1ebf to\u00e1n, s\u1ea3n xu\u1ea5t, kinh doanh;<\/p>\n

\u2013\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u1ee8ng d\u1ee5ng t\u00ednh to\u00e1n ti\u1ec1n l\u01b0\u01a1ng, ti\u1ec1n hoa h\u1ed3ng theo s\u1ea3n ph\u1ea9m, ti\u1ec1n th\u01b0\u1edfng theo h\u1ec7 s\u1ed1 l\u01b0\u01a1ng ho\u1eb7c ng\u00e0y c\u00f4ng\u2026 cho ng\u01b0\u1eddi lao \u0111\u1ed9ng t\u1ea1i c\u00e1c doanh nghi\u1ec7p.<\/p>\n

Ngo\u00e0i ra, s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n s\u1ebd ph\u1ea3n \u00e1nh\u00a0t\u1ec9\u00a0tr\u1ecdng ph\u1ea7n tr\u0103m ng\u00e2n s\u00e1ch c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng chi cho c\u00e1c m\u1eb7t h\u00e0ng kh\u00e1c nhau. Th\u00f4ng qua \u0111\u00f3, ng\u01b0\u1eddi ta s\u1ebd x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1ee9c t\u0103ng b\u00ecnh qu\u00e2n c\u1ee7a gi\u00e1 c\u1ea3 h\u00e0ng h\u00f3a\/d\u1ecbch v\u1ee5 tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/p>\n

\n

Ph\u01b0\u01a1ng ph\u00e1p chi ph\u00ed b\u00ecnh qu\u00e2n gia quy\u1ec1n trong k\u1ebf to\u00e1n l\u00e0 m\u1ed9t trong ba c\u00e1ch ti\u1ebfp c\u1eadn \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb h\u00e0ng t\u1ed3n kho v\u00e0 gi\u00e1 v\u1ed1n h\u00e0ng b\u00e1n.<\/strong><\/em><\/p>\n<\/blockquote>\n

C\u00f4ng th\u1ee9c x\u00e1c \u0111\u1ecbnh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

S\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n\u00a0= \u03a3(xi.wi) \/ \u03a3wi<\/p>\n

Trong \u0111\u00f3:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/p>\n

xi: l\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a l\u01b0\u1ee3ng bi\u1ebfn quan s\u00e1t \u0111\u01b0\u1ee3c<\/p>\n

wi:\u00a0l\u00e0 tr\u1ecdng s\u1ed1 (hay t\u1ea7n s\u1ed1) g\u1eafn v\u1edbi t\u1eebng l\u01b0\u1ee3ng bi\u1ebfn quan s\u00e1t<\/p>\n

V\u00ed d\u1ee5 minh h\u1ecda ph\u01b0\u01a1ng ph\u00e1p t\u00ednh b\u00ecnh qu\u00e2n gia quy\u1ec1n<\/strong><\/p>\n

Tr\u01b0\u1eddng h\u1ee3p 1. T\u00ednh b\u00ecnh qu\u00e2n gia quy\u1ec1n tr\u00ean t\u00e0i li\u1ec7u kh\u00f4ng ph\u00e2n t\u1ed5<\/strong><\/p>\n

T\u00e0i li\u1ec7u kh\u00f4ng ph\u00e2n t\u1ed5 l\u00e0 t\u00e0i li\u1ec7u ch\u1ee9a c\u00e1c s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea n\u00eau ra ng\u1eabu nhi\u00ean, kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp v\u00e0o c\u00e1c nh\u00f3m \u0111\u1eb7c th\u00f9 c\u00f3 t\u00ednh ch\u1ea5t kh\u00e1c nhau. V\u1edbi t\u00e0i li\u1ec7u kh\u00f4ng ph\u00e2n t\u1ed5, c\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng m\u1eabu qua v\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

V\u00ed d\u1ee5: T\u00ednh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n v\u1ec1 m\u1ee9c thu nh\u1eadp c\u1ee7a c\u00e1c h\u1ed9 d\u00e2n t\u1eebng th\u00e1ng theo t\u00e0i li\u1ec7u sau \u0111\u00e2y:<\/p>\n

Thu nh\u1eadp h\u00e0ng th\u00e1ng (tri\u1ec7u \u0111\u1ed3ng) \u2013 xi l\u1ea7n l\u01b0\u1ee3t l\u00e0 5.000, 5.250, 5.400, 5.450, 5.600, 6.000, 6.200, 6.300, 6.500.<\/p>\n

S\u1ed1 h\u1ed9 l\u1ea7n l\u01b0\u1ee3t l\u00e0: 3, 8, 9, 10, 12, 30, 15, 7, 6 (t\u1ed5ng: 100)<\/p>\n

Tr\u00ecnh t\u1ef1 t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n

B\u01b0\u1edbc 1: t\u00ednh \u03a3 thu nh\u1eadp = xi.wi<\/p>\n

C\u1ee5 th\u1ec3 l\u00e0:<\/p>\n

5.000 x 3 = 15.000<\/p>\n

5.250 x 8 = 42.000<\/p>\n

5.400 x 9 = 48.600<\/p>\n

5.450 x 10 = 54.500<\/p>\n

5.600 x 12 = 67.200<\/p>\n

6.000 x 30 = 180.000<\/p>\n

6.200 x 15 = 93.000<\/p>\n

6.300 x 7 = 44.100<\/p>\n

6.500 x 6 = 39.000<\/p>\n

T\u1ed5ng: 583.400<\/p>\n

B\u01b0\u1edbc 2: T\u00ednh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n b\u1eb1ng c\u00e1ch l\u1ea5y t\u1ed5ng thu nh\u1eadp h\u00e0ng th\u00e1ng \u0111em chia cho t\u1ed5ng s\u1ed1 h\u1ed9 d\u00e2n:<\/p>\n

S\u1ed1 trung b\u00ecnh gia quy\u1ec1n =\u00a0 \u00a0= 5.834 (ng\u00e0n \u0111\u1ed3ng)<\/p>\n

Tr\u01b0\u1eddng h\u1ee3p 2. T\u00ednh b\u00ecnh qu\u00e2n gia quy\u1ec1n tr\u00ean t\u00e0i li\u1ec7u c\u00f3 ph\u00e2n t\u1ed5<\/strong><\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi t\u00e0i li\u1ec7u kh\u00f4ng ph\u00e2n t\u1ed5, trong t\u00e0i li\u1ec7u c\u00f3 ph\u00e2n t\u1ed5, c\u00e1c bi\u1ebfn quan s\u00e1t \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o c\u00e1c nh\u00f3m c\u00f3 t\u00ednh ch\u1ea5t \u0111\u1eb7c tr\u01b0ng theo ti\u00eau th\u1ee9c thu\u1ed9c t\u00ednh (d\u1eef li\u1ec7u \u0111\u1ecbnh t\u00ednh) ho\u1eb7c ti\u00eau th\u1ee9c thu\u1ed9c l\u01b0\u1ee3ng (d\u1eef li\u1ec7u \u0111\u1ecbnh l\u01b0\u1ee3ng).<\/p>\n

V\u1eady trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y c\u00e1ch t\u00ednh b\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec, c\u00f3 \u0111i\u1ec3m n\u00e0o kh\u00e1c v\u1edbi tr\u01b0\u1eddng h\u1ee3p tr\u00ean?<\/p>\n

\u0110\u1ec3 t\u00ednh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n trong tr\u01b0\u1eddng h\u1ee3p t\u00e0i li\u1ec7u c\u00f3 ph\u00e2n t\u1ed5, b\u1ea1n th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n

L\u01b0\u1ee3ng bi\u1ebfn xi ch\u00ednh l\u00e0 tr\u1ecb s\u1ed1 gi\u1eefa c\u1ee7a c\u00e1c t\u1ed5, \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng hi\u1ec7u gi\u1eefa gi\u1edbi h\u1ea1n tr\u00ean v\u00e0 gi\u1edbi h\u1ea1n d\u01b0\u1edbi. N\u1ebfu d\u00e3y s\u1ed1 c\u00f3 t\u1ed5 m\u1edf, b\u1ea1n l\u1ea5y kho\u1ea3ng c\u00e1ch t\u1ed5 c\u1ee7a t\u1ed5 m\u1edf g\u1ea7n nh\u1ea5t \u0111\u1ec3 t\u00ednh gi\u1edbi h\u1ea1n tr\u00ean. T\u1eeb \u0111\u00f3 b\u1ea1n s\u1ebd x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ebfn xi.<\/p>\n

Tr\u01b0\u1eddng h\u1ee3p t\u1ed5 kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n tr\u00ean, ta t\u00ecm gi\u1edbi h\u1ea1n tr\u00ean b\u1eb1ng c\u00e1ch:<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Gi\u1edbi h\u1ea1n tr\u00ean =<\/p>\n

Tr\u01b0\u1eddng h\u1ee3p t\u1ed5 kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n d\u01b0\u1edbi, ta t\u00ecm gi\u1edbi h\u1ea1n d\u01b0\u1edbi b\u1eb1ng c\u00e1ch:<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Gi\u1edbi h\u1ea1n d\u01b0\u1edbi =<\/p>\n

Tuy v\u1eady, c\u00e1c c\u00f4ng th\u1ee9c tr\u00ean kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng m\u00e1y m\u00f3c m\u00e0 ph\u1ea3i d\u1ef1a tr\u00ean t\u00ednh ch\u1ea5t c\u1ee7a n\u1ed9i dung nghi\u00ean c\u1ee9u \u0111\u1ec3 ch\u1ecdn gi\u00e1 tr\u1ecb xi\u00a0cho ph\u00f9 h\u1ee3p.<\/p>\n

H\u00e3y xem m\u1ed9t v\u00ed d\u1ee5 \u00e1p d\u1ee5ng c\u1ee5 th\u1ec3 c\u00e1ch t\u00ednh to\u00e1n b\u00ecnh qu\u00e2n gia quy\u1ec1n \u0111\u1ed1i v\u1edbi t\u00e0i li\u1ec7u ph\u00e2n t\u1ed5 qua b\u00e0i to\u00e1n d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

V\u00ed d\u1ee5 2: T\u00ednh s\u1ed1 b\u00ecnh qu\u00e2n gia quy\u1ec1n v\u1ec1 m\u1ee9c thu nh\u1eadp h\u00e0ng th\u00e1ng c\u1ee7a nh\u00e2n vi\u00ean c\u00f4ng ty A. Bi\u1ebft r\u1eb1ng s\u1ed1 li\u1ec7u thu nh\u1eadp h\u00e0ng th\u00e1ng (t\u00ednh theo \u0111\u01a1n v\u1ecb ng\u00e0n \u0111\u1ed3ng) c\u1ee7a nh\u00e2n vi\u00ean \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong t\u00e0i li\u1ec7u ph\u00e2n t\u1ed5 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n

Thu nh\u1eadp h\u00e0ng th\u00e1ng (ng\u00e0n \u0111\u1ed3ng)<\/p>\n

500 \u2013 520: 8 nh\u00e2n vi\u00ean<\/p>\n

520 \u2013 540: 12 nh\u00e2n vi\u00ean<\/p>\n

540 \u2013 560: 20 nh\u00e2n vi\u00ean<\/p>\n

560 \u2013 580: 56 nh\u00e2n vi\u00ean<\/p>\n

580 \u2013 600: 18 nh\u00e2n vi\u00ean<\/p>\n

600 \u2013 620: 16 nh\u00e2n vi\u00ean<\/p>\n

Tr\u00ean 620: 10 nh\u00e2n vi\u00ean<\/p>\n

T\u1ed5ng: 140\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n

Ta th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n nh\u01b0 sau:<\/p>\n

B\u01b0\u1edbc 1: T\u00ednh l\u01b0\u1ee3ng bi\u1ebfn xi nh\u01b0 c\u00f4ng th\u1ee9c \u0111\u00e3 li\u1ec7t k\u00ea \u1edf tr\u00ean. K\u1ebft qu\u1ea3 c\u1ee5 th\u1ec3 nh\u01b0 b\u1ea3ng sau:<\/p>\n

500 \u2013 520: 8 nh\u00e2n vi\u00ean \uf0e0 xi = (520 +500)\/2 = 510<\/p>\n

520 \u2013 540: 12 nh\u00e2n vi\u00ean \uf0e0 xi = 530<\/p>\n

540 \u2013 560: 20 nh\u00e2n vi\u00ean\uf0e0 xi = 550<\/p>\n

560 \u2013 580: 56 nh\u00e2n vi\u00ean\uf0e0 xi = 570<\/p>\n

580 \u2013 600: 18 nh\u00e2n vi\u00ean\uf0e0 xi = 590<\/p>\n

600 \u2013 620: 16 nh\u00e2n vi\u00ean\uf0e0 xi = 610<\/p>\n

Tr\u00ean 620: 10 nh\u00e2n vi\u00ean \uf0e0 xi = 630<\/p>\n

B\u01b0\u1edbc 2: L\u1eadp b\u1ea3ng t\u1ed5ng thu nh\u1eadp h\u00e0ng th\u00e1ng c\u1ee7a c\u00e1c nh\u00e2n vi\u00ean c\u00f4ng ty A theo c\u00f4ng th\u1ee9c:<\/p>\n

\u03a3 thu nh\u1eadp = xi.wi.<\/p>\n

C\u1ee5 th\u1ec3 l\u00e0:<\/p>\n

500 \u2013 520: 8 nh\u00e2n vi\u00ean \uf0e0 xi = (520 +500)\/2 = 510 \uf0e0 xi.wi = (510 x 8) = 4.080<\/p>\n

520 \u2013 540: 12 nh\u00e2n vi\u00ean \uf0e0 xi = 530\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \uf0e0 xi.wi = 6.360<\/p>\n

540 \u2013 560: 20 nh\u00e2n vi\u00ean\uf0e0 xi = 550\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \uf0e0 xi.wi = 11.000<\/p>\n

560 \u2013 580: 56 nh\u00e2n vi\u00ean\uf0e0 xi = 570\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \uf0e0 xi.wi = 31.920<\/p>\n

580 \u2013 600: 18 nh\u00e2n vi\u00ean\uf0e0 xi = 590\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \uf0e0 xi.wi = 10.620<\/p>\n

600 \u2013 620: 16 nh\u00e2n vi\u00ean\uf0e0 xi = 610\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \uf0e0 xi.wi = 9.760<\/p>\n

Tr\u00ean 620: 10 nh\u00e2n vi\u00ean \uf0e0 xi = 630\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \uf0e0 xi.wi = 6.300<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 T\u1ed5ng: 80.040<\/p>\n

B\u01b0\u1edbc 3: \u00c1p d\u1ee5ng c\u00f4ng th\u1ee9c t\u00ednh th\u01b0\u01a1ng gi\u1eefa t\u1ed5ng thu nh\u1eadp h\u00e0ng th\u00e1ng v\u00e0 t\u1ed5ng s\u1ed1 nh\u00e2n vi\u00ean, ta d\u1ec5 d\u00e0ng ra \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng:<\/p>\n

S\u1ed1 trung b\u00ecnh gia quy\u1ec1n = 571,71 (ng\u00e0n \u0111\u1ed3ng<\/p>\n

L\u01b0u \u00fd:<\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf vi\u1ec7c \u01b0\u1edbc l\u01b0\u1ee3ng c\u00e1c gi\u00e1 tr\u1ecb xi c\u00f3 ch\u00ednh x\u00e1c hay kh\u00f4ng c\u00f2n ph\u1ee5 thu\u1ed9c t\u00ednh ch\u1ea5t \u0111\u1ed1i x\u1ee9ng khi ph\u00e2n ph\u1ed1i c\u1ee7a t\u1eebng t\u1ed5. N\u1ebfu ph\u00e2n ph\u1ed1i c\u1ee7a t\u1eebng t\u1ed5 c\u00f3 t\u00ednh ch\u1ea5t \u0111\u1ed1i x\u1ee9ng th\u00ec gi\u00e1 tr\u1ecb xi \u01b0\u1edbc l\u01b0\u1ee3ng c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu ph\u00e2n ph\u1ed1i c\u1ee7a t\u1eebng t\u1ed5 kh\u00f4ng \u0111\u1ed1i x\u1ee9ng (l\u1ec7ch tr\u00e1i ho\u1eb7c l\u1ec7ch ph\u1ea3i) th\u00ec gi\u00e1 tr\u1ecb xi \u01b0\u1edbc l\u01b0\u1ee3ng kh\u00f4ng ch\u00ednh x\u00e1c, d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 v\u00f4 ngh\u0129a.<\/p>\n

Qua nh\u1eefng chia s\u1ebb c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 kh\u00e1i ni\u1ec7m b\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec c\u0169ng nh\u01b0 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh ch\u1ec9 s\u1ed1 n\u00e0y nh\u01b0 tr\u00ean, mong r\u1eb1ng b\u00e0i vi\u1ebft s\u1ebd gi\u00fap b\u1ea1n \u0111\u1ecdc c\u1ea3m th\u1ea5y d\u1ec5 d\u00e0ng h\u01a1n khi t\u00ednh to\u00e1n trong h\u1ecdc t\u1eadp hay trong c\u00f4ng vi\u1ec7c.<\/p>\n

Pha L\u00ea<\/strong><\/p>\n

<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

B\u00ecnh qu\u00e2n gia quy\u1ec1n l\u00e0 g\u00ec m\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean trong k\u1ebf to\u00e1n? \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh gi\u00e1 c\u01a1 b\u1ea3n m\u00e0 b\u1ea5t k\u1ef3 ai h\u1ecdc k\u1ebf to\u00e1n ho\u1eb7c tham gia l\u0129nh v\u1ef1c kinh doanh \u0111\u1ec1u ph\u1ea3i bi\u1ebft. C\u1ee5 th\u1ec3 th\u00ec \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng th\u1ebf n\u00e0o, h\u00e3y t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n qua b\u00e0i vi\u1ebft sau \u0111\u00e2y nh\u00e9.\u00a0<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[429],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/21793"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=21793"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/21793\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=21793"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=21793"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=21793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}