Li\u00ean quan v\u1ee5 gian l\u1eadn \u0111i\u1ec3m thi trong k\u1ef3 thi THPT qu\u1ed1c gia n\u0103m 2018, TS Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng (tr\u01b0\u1eddng \u0110H Kinh t\u1ebf qu\u1ed1c d\u00e2n H\u00e0 N\u1ed9i) cho r\u1eb1ng, c\u00f3 th\u1ec3 vi\u1ec7c n\u00e2ng \u0111i\u1ec3m \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb tr\u01b0\u1edbc khi th\u00ed sinh \u0111i thi.\u00a0<\/strong><\/h5>\n\n\n\n

<\/figure><\/div>\n\n\n\n

Theo ph\u00e2n t\u00edch c\u1ee7a TS Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng (Ph\u00f3 Vi\u1ec7n tr\u01b0\u1edfng Vi\u1ec7n Nghi\u00ean c\u1ee9u Ch\u00ednh s\u00e1ch c\u00f4ng v\u00e0 Qu\u1ea3n l\u00fd, tr\u01b0\u1eddng \u0110H Kinh t\u1ebf qu\u1ed1c d\u00e2n, ng\u01b0\u1eddi l\u1ecdt v\u00e0o t\u1ed1p 5% nh\u00e0 nghi\u00ean c\u1ee9u kinh t\u1ebf h\u00e0ng \u0111\u1ea7u theo x\u1ebfp h\u1ea1ng c\u1ee7a REPEC), nhi\u1ec1u ph\u1ee5 huynh n\u00f3i, h\u1ecd kh\u00f4ng h\u1ec1 bi\u1ebft vi\u1ec7c con c\u00e1i \u0111\u01b0\u1ee3c n\u00e2ng \u0111i\u1ec3m nh\u01b0ng chuy\u00ean gia n\u00e0y cho r\u1eb1ng, \u0111\u1ec1u n\u00e0y l\u00e0 h\u1ebft s\u1ee9c v\u00f4 l\u00fd b\u1edfi vi\u1ec7c n\u00e2ng \u0111i\u1ec3m c\u00f3 th\u1ec3 \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb tr\u01b0\u1edbc khi h\u1ecdc sinh \u0111i thi.<\/p>\n\n\n\n

TS C\u01b0\u1eddng cho hay, nhi\u1ec1u m\u00f4n THPT thi tr\u1eafc nghi\u1ec7m v\u1edbi 4 \u0111\u00e1p \u00e1n cho m\u1ed7i c\u00e2u tr\u1ea3 l\u1eddi, v\u00e0 ch\u1ec9 c\u1ea7n ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi ng\u1eabu nhi\u00ean ch\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u0111\u00fang \u0111\u01b0\u1ee3c 25% s\u1ed1 c\u00e2u h\u1ecfi.<\/p>\n\n\n\n

C\u00e1c b\u00e0i thi c\u00f3 40 c\u00e2u, v\u00e0 n\u1ebfu ch\u00fang ta c\u1ee9 ch\u1ecdn ng\u1eabu nhi\u00ean c\u00e2u tr\u1ea3 l\u1eddi th\u00ec trung b\u00ecnh c\u0169ng \u0111\u01b0\u1ee3c 2,5 \u0111i\u1ec3m.<\/p>\n\n\n\n

Tuy nhi\u00ean, mu\u1ed1n \u0111\u01b0\u1ee3c \u0111i\u1ec3m d\u01b0\u1edbi 1 kh\u00f4ng h\u1ec1 d\u1ec5 ch\u00fat n\u00e0o. V\u1edbi 40 c\u00e2u h\u1ecfi v\u00e0 x\u00e1c su\u1ea5t \u0111\u00fang l\u00e0 0.25 th\u00ec s\u1ed1 c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang s\u1ebd ph\u00e2n ph\u1ed1i theo quy lu\u1eadt nh\u1ecb th\u1ee9c (binomial distribution).<\/p>\n\n\n\n

Mu\u1ed1n \u0111\u01b0\u1ee3c d\u01b0\u1edbi 1 \u0111i\u1ec3m, ch\u00fang ta ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u00fang t\u1ed1i \u0111a 3 c\u00e2u, v\u00e0 x\u00e1c su\u1ea5t \u0111\u1ec3 \u0111\u00fang t\u1ed1i \u0111a 3 c\u00e2u n\u00e0y l\u00e0 0.0047 (t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c hay ph\u1ea7n m\u1ec1m th\u1ed1ng k\u00ea c\u00f3 h\u00e0m binomial).<\/p>\n\n\n\n

V\u1ec1 x\u00e1c su\u1ea5t \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec3m 0 th\u00ec b\u00e9 h\u01a1n nhi\u1ec1u (b\u1eb1ng 0.00001006). Gi\u1ea3 s\u1eed ch\u00fang ta xem x\u00e9t x\u00e1c su\u1ea5t \u0111\u01b0\u1ee3c d\u01b0\u1edbi 1 \u0111i\u1ec3m th\u00ec v\u1edbi t\u1ed5ng s\u1ed1 th\u00ed sinh l\u00e0 900 ngh\u00ecn th\u00ec s\u1ebd c\u00f3 4230 th\u00ed sinh \u0111\u01b0\u1ee3c d\u01b0\u1edbi 1 \u0111i\u1ec3m. Con s\u1ed1 n\u00e0y v\u1eabn kh\u00e1 nhi\u1ec1u n\u00ean v\u1eabn c\u00f3 th\u1ec3 c\u00e1c th\u00ed sinh \u0111\u01b0\u1ee3c n\u00e2ng \u0111i\u1ec3m th\u1ef1c s\u1ef1 b\u1ecb d\u01b0\u1edbi 1 \u0111i\u1ec3m.<\/p>\n\n\n\n

Tuy nhi\u00ean, m\u1ea5u ch\u1ed1t v\u1ea5n \u0111\u1ec1 l\u00e0 m\u1ed9t s\u1ed1 th\u00ed sinh \u0111\u01b0\u1ee3c \u0111i\u1ec3m c\u1ea3 3 b\u00e0i thi d\u01b0\u1edbi 1 \u0111i\u1ec3m (th\u1eadm ch\u00ed bao g\u1ed3m c\u1ea3 \u0111i\u1ec3m 0). \u0110\u01b0\u1ee3c m\u1ed9t \u0111i\u1ec3m d\u01b0\u1edbi 1 \u0111\u00e3 kh\u00f3, m\u00e0 \u0111\u01b0\u1ee3c c\u1ea3 3 \u0111i\u1ec3m d\u01b0\u1edbi 1 l\u00e0 v\u00f4 c\u00f9ng hy h\u1eefu.<\/p>\n\n\n\n

X\u00e1c su\u1ea5t \u0111\u01b0\u1ee3c 3 b\u00e0i th\u00ed \u0111\u1ec1u d\u01b0\u1edbi 1 \u0111i\u1ec3m l\u00e0 0.0047 m\u0169 3, t\u1ee9c l\u00e0 1.035e-07, kho\u1ea3ng 1 ph\u1ea7n 10 tri\u1ec7u. C\u00f3 th\u00ed sinh th\u1eadm ch\u00ed c\u00f2n \u0111\u01b0\u1ee3c 2 \u0111i\u1ec3m 0 n\u1eefa, m\u00e0 x\u00e1c su\u1ea5t \u0111\u01b0\u1ee3c 2 \u0111i\u1ec3m 0 l\u00e0 m\u1ed9t ph\u1ea7n 10 t\u1ef7.<\/p>\n\n\n\n

C\u00f3 ngh\u0129a l\u00e0 b\u1eaft c\u1ea3 th\u1ebf gi\u1edbi n\u00e0y \u0111i thi tr\u1eafc nghi\u1ec7m v\u00e0 y\u00eau c\u1ea7u ch\u1ecdn ng\u1eabu nhi\u00ean th\u00ec c\u0169ng ch\u01b0a ch\u1eafc t\u00ecm \u0111\u01b0\u1ee3c ai c\u00f3 2 \u0111i\u1ec3m 0.<\/p>\n\n\n\n

V\u1eady m\u00e0 \u1edf m\u1ea5y t\u1ec9nh v\u1edbi v\u00e0i ch\u1ee5c ngh\u00ecn h\u1ecdc sinh, l\u1ea1i t\u00ecm \u0111\u01b0\u1ee3c m\u1ea5y em nh\u01b0 v\u1eady. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y, c\u00f3 th\u1ec3 h\u1ecdc sinh \u0111\u00e3 ch\u1ee7 \u0111\u1ed9ng kh\u00f4ng \u0111i\u1ec1n \u0111\u00e1p \u00e1n, \u0111\u1ec3 cho vi\u1ec7c \u0111i\u1ec1n \u0111\u00e1p \u00e1n sau khi thi \u0111\u01b0\u1ee3c d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n\n\n\n

C\u0169ng theo chuy\u00ean gia n\u00e0y, tr\u01b0\u1edbc khi thi, nh\u1eefng h\u1ecdc sinh \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u00e3 bi\u1ebft tr\u01b0\u1edbc r\u1eb1ng h\u1ecd s\u1ebd \u0111\u01b0\u1ee3c n\u00e2ng \u0111i\u1ec3m. Th\u00ed sinh bi\u1ebft \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y th\u00ec kh\u00f4ng th\u1ec3 n\u00f3i cha m\u1eb9 kh\u00f4ng bi\u1ebft \u0111\u01b0\u1ee3c.\u00a0<\/p>\n\n\n\n

PV D\u00e2n tr\u00ed<\/em> ph\u1ea3n \u00e1nh tr\u01b0\u1edbc \u0111\u00f3, k\u1ef3 thi THPT qu\u1ed1c gia 2018 \u1edf Ho\u00e0 B\u00ecnh, c\u00f3 64 th\u00ed sinh, trong \u0111\u00f3 63 th\u00ed sinh n\u0103m 2018 v\u00e0 m\u1ed9t th\u00ed sinh c\u1ee7a n\u0103m 2017 \u0111\u01b0\u1ee3c n\u00e2ng \u0111i\u1ec3m.<\/p>\n\n\n\n

C\u00f3 56 th\u00ed sinh v\u1edbi 140 b\u00e0i thi tr\u1eafc nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c thay \u0111\u1ed5i \u0111i\u1ec3m. M\u00f4n c\u00f3 \u0111i\u1ec3m gi\u1ea3m nhi\u1ec1u nh\u1ea5t l\u00e0 9,25 \u0111i\u1ec3m. Trong \u0111\u00f3, c\u00f3 th\u00ed sinh \u0111\u01b0\u1ee3c t\u0103ng \u0111i\u1ec3m 3 m\u00f4n cao nh\u1ea5t l\u00e0 26,45 \u0111i\u1ec3m.<\/p>\n\n\n\n

Tr\u01b0\u1edbc \u0111\u00f3 ng\u00e0y 23\/3, B\u1ed9 GD&\u0110T c\u00f4ng b\u1ed1 th\u00f4ng tin v\u1ec1 x\u1eed l\u00fd vi ph\u1ea1m trong k\u1ef3 thi THPT qu\u1ed1c gia n\u0103m 2018 t\u1ea1i S\u01a1n La. Trong \u0111\u00f3,  44 th\u00ed sinh \u0111i\u1ec3m thi thay \u0111\u1ed5i, c\u00f3 th\u00ed sinh \u0111\u01b0\u1ee3c n\u00e2ng \u0111i\u1ec3m cao nh\u1ea5t \u0111\u1ebfn 26,55 \u0111i\u1ec3m.<\/p>\n\n\n\n

Trong danh s\u00e1ch 44 th\u00ed sinh “gian l\u1eadn” \u0111i\u1ec3m thi \u1edf \u0111\u1ecba ph\u01b0\u01a1ng n\u00e0y, v\u1edbi nh\u1eefng m\u00f4n x\u00e9t tuy\u1ec3n v\u00e0o \u0111\u1ea1i h\u1ecdc, c\u00e1c em \u0111\u01b0\u1ee3c ph\u00f9 ph\u00e9p \u0111i\u1ec3m thi t\u1eeb 0 l\u00ean 9 – 10 \u0111i\u1ec3m \u1edf c\u00e1c m\u00f4n To\u00e1n, L\u00fd, H\u00f3a, Ngo\u1ea1i ng\u1eef, V\u0103n. <\/p>\n\n\n\n

Nhi\u1ec1u th\u00ed sinh \u0111\u01b0\u1ee3c s\u1eeda, n\u00e2ng \u0111i\u1ec3m thi THPT qu\u1ed1c gia \u1edf S\u01a1n La \u0111\u01b0\u1ee3c cho l\u00e0 con quan ch\u1ee9c \u0111ang c\u00f4ng t\u00e1c t\u1ea1i c\u00e1c ban, ng\u00e0nh t\u1ec9nh, s\u1edf GD&\u0110T, Thanh tra, th\u00e0nh ph\u1ed1, c\u00f4ng an\u2026
<\/p>\n","protected":false},"excerpt":{"rendered":"

Li\u00ean quan v\u1ee5 gian l\u1eadn \u0111i\u1ec3m thi trong k\u1ef3 thi THPT qu\u1ed1c gia n\u0103m 2018, TS Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng (tr\u01b0\u1eddng \u0110H Kinh t\u1ebf qu\u1ed1c d\u00e2n H\u00e0 N\u1ed9i) cho r\u1eb1ng, c\u00f3 th\u1ec3 vi\u1ec7c n\u00e2ng \u0111i\u1ec3m \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb tr\u01b0\u1edbc khi th\u00ed sinh \u0111i thi.\u00a0 Theo ph\u00e2n t\u00edch c\u1ee7a TS Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng (Ph\u00f3 Vi\u1ec7n tr\u01b0\u1edfng […]<\/p>\n","protected":false},"author":3,"featured_media":39392,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[19],"tags":[],"yoast_head":"\n