Hi\u1ec7n nay, trong l\u0129nh v\u1ef1c l\u00f4 \u0111\u1ec1, \u201cb\u1ea1c nh\u1edb\u201d \u0111ang l\u00e0 t\u1eeb kh\u00f3a \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi t\u00ecm ki\u1ebfm. V\u1eady theo b\u1ea1n, b\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1 l\u00e0 g\u00ec? V\u00e0 c\u00f3 nh\u1eefng lo\u1ea1i th\u1ed1ng k\u00ea b\u00e1c nh\u1edb<\/strong> n\u00e0o \u0111ang \u0111\u01b0\u1ee3c y\u00eau th\u00edch nh\u1ea5t hi\u1ec7n nay?<\/p>\n V\u1edbi b\u1ea5t k\u1ef3 ai khi tham gia v\u00e0o gi\u1edbi l\u00f4 \u0111\u1ec1, h\u1ecd \u0111\u1ec1u mu\u1ed1n hi\u1ec3u v\u1ec1 thu\u1eadt ng\u1eef b\u1ea1c nh\u1edb. H\u1ecd mu\u1ed1n bi\u1ebft n\u00f3 l\u00e0 g\u00ec? \u0110\u1eb7c bi\u1ec7t l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng b\u1ea1c nh\u1edb \u0111em l\u1ea1i l\u1ee3i \u00edch g\u00ec cho ng\u01b0\u1eddi ch\u01a1i. \u0110\u1ec3 gi\u1ea3i \u0111\u00e1p nh\u1eefng th\u1eafc m\u1eafc n\u00e0y, ch\u00fang t\u00f4i \u0111\u00e3 d\u00e0nh t\u00e2m huy\u1ebft c\u1ee7a m\u00ecnh \u0111\u1ec3 vi\u1ebft b\u00e0i n\u00e0y. Mong r\u1eb1ng, nh\u1eefng th\u00f4ng tin m\u00e0 ch\u00fang t\u00f4i s\u1eafp cung c\u1ea5p s\u1ebd h\u1eefu \u00edch v\u1edbi b\u1ea1n.<\/p>\n <\/p>\n Tr\u00ean th\u1ef1c t\u1ebf, \u201cb\u1ea1c c\u00e1i l\u00f4 \u0111\u1ec1\u201d kh\u00f4ng ph\u1ea3i thu\u1eadt ng\u1eef g\u00ec qu\u00e1 xa l\u1ea1 v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111\u00e1nh b\u1ea1c. V\u00ec cho d\u00f9 c\u00f3 ch\u01b0a t\u1eebng \u00e1p d\u1ee5ng c\u00e1ch ch\u01a1i n\u00e0y th\u00ec h\u1ecd c\u0169ng s\u1ebd nghe th\u1ea5y t\u00ean n\u00f3 r\u1ed3i. Th\u1ebf nh\u01b0ng, s\u1ed1 ng\u01b0\u1eddi n\u1eafm \u0111\u01b0\u1ee3c b\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1 l\u00e0 g\u00ec th\u00ec kh\u00f4ng nhi\u1ec1u. N\u1ebfu b\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng c\u00e1c c\u00e1ch th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb<\/strong> th\u00ec \u0111i\u1ec1u \u0111\u1ea7u ti\u00ean b\u1ea1n c\u1ea7n bi\u1ebft l\u00e0 kh\u00e1i ni\u1ec7m c\u1ee7a n\u00f3.<\/p>\n Nh\u01b0 ch\u00fang ta \u0111\u00e3 bi\u1ebft, hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 ch\u01a1i x\u1ed5 s\u1ed1 l\u00f4 \u0111\u1ec1. V\u00e0 b\u1ea1c nh\u1edb ch\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f3. B\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1 l\u00e0 c\u00e1ch ch\u01a1i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 xsmb. Ng\u01b0\u1eddi ch\u01a1i s\u1ebd d\u1ef1a v\u00e0o kinh nghi\u1ec7m c\u1ee7a h\u1ecd \u0111\u1ec3 t\u00ecm ra c\u1eb7p s\u1ed1 may m\u1eafn c\u00f3 th\u1ec3 v\u1ec1 v\u00e0o h\u00f4m sau. D\u0129 nhi\u00ean, mu\u1ed1n c\u00f3 c\u1eb7p s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y th\u00ec ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i d\u1ef1a v\u00e0o c\u00e1c con s\u1ed1 v\u1ec1 h\u00f4m tr\u01b0\u1edbc. V\u00ec th\u00f4ng th\u01b0\u1eddng, k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 l\u00f4 \u0111\u1ec1 s\u1ebd \u0111\u01b0\u1ee3c l\u1eb7p \u0111i l\u1eb7p l\u1ea1i theo m\u1ed9t quy lu\u1eadt n\u00e0o \u0111\u00f3.<\/p>\n T\u1eeb khi xu\u1ea5t hi\u1ec7n cho \u0111\u1ebfn nay, th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb<\/strong> lu\u00f4n l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i tin t\u01b0\u1edfng. \u0110\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng ng\u01b0\u1eddi theo xsmb, h\u1ecd th\u01b0\u1eddng kh\u00f4ng b\u1ecf qua ph\u01b0\u01a1ng ph\u00e1p n\u00e0y. V\u00ec n\u00f3 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c r\u1ea5t cao n\u00ean d\u1ec5 d\u00e0ng \u0111em l\u1ea1i gi\u1ea3i th\u01b0\u1edfng gi\u00e1 tr\u1ecb cho ng\u01b0\u1eddi ch\u01a1i. V\u1eady trong c\u00e1c c\u00e1ch th\u1ed1ng k\u00ea v\u1ec1 b\u1ea1c nh\u1edb hi\u1ec7n nay, b\u1ea1n n\u00ean ch\u1ecdn c\u00e1i n\u00e0o?<\/p>\n \u0110\u1ec3 ph\u00e2n lo\u1ea1i b\u1ea1c nh\u1edb cho ng\u01b0\u1eddi ch\u01a1i d\u1ec5 d\u00e0ng \u00e1p d\u1ee5ng, ng\u01b0\u1eddi ta \u0111\u00e3 d\u1ef1a v\u00e0o r\u1ea5t nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau. Ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ef1a v\u00e0o th\u1ee9, nh\u00e1y, theo t\u1ed5ng, hay theo gi\u1ea3i,\u2026 V\u00e0 sau \u0111\u00e2y, ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u \u0111\u1ebfn b\u1ea1n nh\u1eefng lo\u1ea1i th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb <\/strong>ph\u1ed5 bi\u1ebfn nh\u1ea5t. Cho n\u00ean, \u0111\u1eebng ch\u1ea7n ch\u1eeb g\u00ec n\u1eefa m\u00e0 h\u00e3y ti\u1ebfp t\u1ee5c c\u00f9ng ch\u00fang t\u00f4i \u0111i t\u00ecm hi\u1ec3u v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nh\u00e9!<\/p>\n Trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i b\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1, \u0111\u00e2y l\u00e0 c\u00e1ch lu\u00f4n \u0111\u01b0\u1ee3c ng\u01b0\u1eddi ch\u01a1i bi\u1ebft \u0111\u1ebfn \u0111\u1ea7u ti\u00ean. B\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1 \u0111\u1ea7u c\u00e2m \u0111u\u00f4i c\u00e2m \u0111\u1eb7c bi\u1ec7t \u1edf ch\u1ed7 ng\u01b0\u1eddi ch\u01a1i t\u00ecm c\u00e1c con s\u1ed1 kh\u00f4ng v\u1ec1 ng\u00e0y h\u00f4m \u0111\u00f3. V\u00e0 d\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p m\u00e0 b\u1ea1n n\u00ean bi\u1ebft:<\/p>\n \u0110\u1ec3 m\u1ecdi ng\u01b0\u1eddi d\u1ec5 hi\u1ec3u h\u01a1n th\u00ec d\u01b0\u1edbi \u0111\u00e2y, ch\u00fang t\u00f4i s\u1ebd \u0111em \u0111\u1ebfn m\u1ed9t v\u00ed d\u1ee5 th\u1ef1c t\u1ebf b\u1eb1ng c\u00e1c con s\u1ed1. \u0110\u00f3 l\u00e0: \u0110\u1ea7u c\u00e2m l\u00e0 s\u1ed1 1 v\u00e0 ch\u00fang ta c\u00f3 c\u1eb7p s\u1ed1 10 \u2013 11. \u0110\u1ea7u c\u00e2m l\u00e0 3 v\u00e0 7 th\u00ec d\u00e0n c\u1ea7n \u0111\u00e1nh l\u00e0: 30 \u2013 33 \u2013 70 \u2013 77 \u2013 37 \u2013 73. Cu\u1ed1i c\u00f9ng, \u0111\u1ea7u c\u00e2m l\u00e0 1, 3 v\u00e0 5 th\u00ec d\u00e0n s\u1ed1 c\u1ea7n t\u00ecm l\u00e0: 13 \u2013 31 \u2013 35 \u2013 53.<\/p>\n R\u1ea5t \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u \u0111\u00fang kh\u00f4ng n\u00e0o. H\u01a1n n\u1eefa, theo k\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t m\u00e0 ch\u00fang t\u00f4i c\u00f3 \u0111\u01b0\u1ee3c th\u00ec s\u1ed1 \u0111\u1ea7u c\u00e2m c\u00e0ng b\u00e9, x\u00e1c su\u1ea5t d\u00e0n v\u1ec1 c\u00e0ng cao. Cho n\u00ean, n\u1ebfu b\u1ea1n ch\u01b0a bi\u1ebft ch\u1ecdn c\u00e1ch n\u00e0o th\u00ec h\u00e3y th\u1eed \u0111\u1ea7u \u0111u\u00f4i \u0111\u1ec1u c\u00e2m nh\u00e9!<\/p>\n <\/p>\n D\u1ef1a v\u00e0o gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u1ed9t c\u00e1ch th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb <\/strong>r\u1ea5t \u0111\u1ed9c \u0111\u00e1o. H\u01a1n n\u1eefa, t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 c\u0169ng kh\u00f4ng k\u00e9m g\u00ec so v\u1edbi b\u1ea1c nh\u1edb \u0111\u1ea7u \u0111\u00edt c\u00e2m. V\u00e0 khi ti\u1ebfn h\u00e0nh c\u00e1ch n\u00e0y, y\u1ebfu t\u1ed1 m\u00e0 ch\u00fang ta c\u1ea7n x\u00e1c \u0111\u1ecbnh l\u00e0 t\u1ed5ng c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t. Ti\u1ebfp \u0111\u00f3, ch\u00fang ta l\u1ea1i t\u00ednh t\u1ed5ng c\u1ee7a k\u1ebft qu\u1ea3 v\u1eeba t\u00ednh \u0111\u01b0\u1ee3c. Sau khi t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng r\u1ed3i th\u00ec ch\u00fang ta xem xem n\u00f3 r\u01a1i v\u00e0o tr\u01b0\u1eddng h\u1ee3p n\u00e0o trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n Theo nh\u01b0 kinh nghi\u1ec7m c\u1ee7a c\u00e1c cao th\u1ee7 l\u00f4 \u0111\u1ec1 th\u00ec \u0111\u00e1nh theo quy lu\u1eadt nh\u01b0 v\u1eady s\u1ebd r\u1ea5t d\u1ec5 v\u1ec1. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t v\u00e0i v\u00ed d\u1ee5 th\u1ef1c t\u1ebf d\u00e0nh cho b\u1ea1n:<\/p>\n N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi th\u01b0\u1eddng xuy\u00ean theo d\u00f5i k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1, b\u1ea1n s\u1ebd nh\u1eadn th\u1ea5y r\u1eb1ng \u0111\u1ec1 r\u1ea5t hay v\u1ec1 k\u00e9p. V\u1ec1 k\u00e9p c\u00f3 ngh\u0129a l\u00e0 r\u01a1i v\u00e0o c\u00e1c con s\u1ed1 nh\u01b0: 00, 55, 22, 88,\u2026 \u0110\u1eb7c bi\u1ec7t, m\u1ed7i con s\u1ed1 may m\u1eafn n\u00e0y s\u1ebd t\u00ecm ra nh\u1eefng con s\u1ed1 may m\u1eafn nh\u1ea5t cho h\u00f4m sau. V\u00e0 c\u1ee5 th\u1ec3, c\u00e1c s\u1ed1 k\u00e9p \u0111\u00f3 s\u1ebd g\u1eafn li\u1ec1n v\u1edbi nh\u1eefng s\u1ed1 may m\u1eafn sau:<\/p>\n R\u1ea5t \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u \u0111\u00fang kh\u00f4ng n\u00e0o? B\u1ea1n c\u00f3 mu\u1ed1n m\u1ed9t l\u1ea7n th\u1eed c\u00e1ch b\u1ea1c nh\u1edb n\u00e0y kh\u00f4ng. Nh\u1ee1 \u0111\u00e2u, \u0111\u00e2y l\u1ea1i l\u00e0 c\u00e1ch c\u00f3 th\u1ec3 \u0111em l\u1ea1i ti\u1ec1n t\u00e0i cho b\u1ea1n.<\/p>\n Ngo\u00e0i c\u00e1i t\u00ean n\u00e0y ra, c\u00e1ch n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ea1c nh\u1edb R\u1ed3ng B\u1ea1ch Kim. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch d\u1ec5 nh\u1edb, d\u1ec5 \u00e1p d\u1ee5ng m\u00e0 t\u00ednh hi\u1ec7u qu\u1ea3 c\u0169ng kh\u00e1 cao. C\u1ee5 th\u1ec3, n\u1ed9i dung c\u00e1ch th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb <\/strong>n\u00e0y nh\u01b0 sau:<\/p>\nB\u1eadt m\u00ed kh\u00e1i ni\u1ec7m b\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1<\/strong><\/h2>\n
Ph\u00e2n lo\u1ea1i c\u00e1c c\u00e1ch th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb hi\u1ec7n nay<\/strong><\/h2>\n
Th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb \u0111\u1ea7u \u0111u\u00f4i \u0111\u1ec1u c\u00e2m<\/strong><\/h3>\n
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B\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1 d\u1ef1a v\u00e0o gi\u1ea3i \u0111\u1eb7c bi\u1ec7t<\/strong><\/h3>\n
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Th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb d\u1ef1a v\u00e0o l\u00f4 k\u00e9p<\/strong><\/h3>\n
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B\u1ea1c nh\u1edb l\u00f4 \u0111\u1ec1 theo th\u1ee9 trong tu\u1ea7n<\/strong><\/h3>\n