i bp lc li. V, m i #DIV/0! nng 0, ho li #NAME? nu A hon ti #REF! nt vi A hoc B b  i cn phi li dng c s t ra m hung: nY LI.   u xy ra l MS Excel 2003 tr v t biu thc. Nu biu thc p li, ISERROR() s tr v  u biu thi, ISERROR() tr v  FALSE. i IF: =IF(ISERROR(expression), ErrorResult, expression) Nu thi,  l ErrorResult (mng, hoc mc li, s l biu th : =IF(ISERROR(A/B), "", A/B) t tin khi pha IF() vi nhu thc hai ln: mt lt ln  tham s value_is_False ca IF()  t tin v dc c  bu th c. c s bt ti m : IFERROR(value, value_if_error) _____value: Biu th s i _____value_if_error: kt qu tr v ni Nu biu thi, IFERROR() s ly biu th biu thc value_if_error. c =IF(ISERROR(A/B), "", A/B) n  =IFERROR(A/B, "") Bn thy, IFERROR() ngn g hiu.  ci s   c, mi : OR(logical1 [, logical2] [, logical3] ) logical: Nhng biu thc s  Nu tt c u th tr v   cu th tr v  TRUE. Ging  t c ch n mu  : =IF(OR(B2 > 0, C2 > 0), "1000", "No bonus") N  B2 hoc  C2 l c ng) 1.000, u c u nh ng chi c.  nhp trc tic, Excel s hit biu th   B qua nh li khi chc : Ct Gross Margin (ct D) ca ba mt s p li chia cho 0 ng.  ng ca ct D, k nhi #DIV/0!, phc m sau: {=AVERAGE(IF(ISERROR(D3:D12), "", D3:D12))} u gp nhng rng) a ct (Determining the Column Letter) t qu  ca c kt qu s  n mun kt qu a ct ch  (B ch i  t v i s t trong by t n Z, t i t ma ch tuyi ca m $A$2, hoc $B$10  Vt tham s    n ch nh, nu b tr l thc CELL().  a ch tuyi ca m c CELL() vi  a cng ch m gia hai d a ch tuy B  v  a ch tuyi ca cell: =MID(CELL("Address"), 2, num_chars)   2, ho (: A, AA hoc AAA). Vn d FIND("$", CELL("address"",A2), 3) - 2 Gi a da ch tuyi c b v  a ch  Ti sao phi tr  ch ra v t con s) ca du $ th a ch tuyi ca cell, tt, phi tr  bt qu s   ct (1 ch, 2 ch hoc 3 ch) nh s  =MID(CELL("Address"), 2, FIND("$", CELL("address"), 3) - 2) c. Nu mut ti mn ch via ch (hoc m  chia ch a cell mu , mua cell AGH68, b =MID(CELL("Address", AGH68), 2, FIND("$", CELL("address", AGH68), 3) -  L t ng u danh mc danh mc l b t u ct hp vi mt con s.  t y rt d  dng nh  i. Gi s danh mc ca nm  cu ti cell A2.  a danh mnh dng ch in hoa, bc: UPPER(LEFT(A2, 3)) Tip theo, tn d ca nh l t ng: ROW(A2), nh dng sao cho nhng con s  s, bc: TEXT(ROW(A2),"0000") nh: =UPPER(LEFT(A2, 3)) & TEXT(ROW(A2), "0000")  Tr v  c y beta.  u s bi ph ng th xem TV trong mng hn. : = BETADIST(x, alpha, beta, A, B)  gi   alpha & beta : Tham s ci. A : Ci ca khong x, m B : Ca khong x, m  * Nt k i s , BETADIST() tr v  li #VALUE! * N() tr v  li #NUM! * Nu x < A, x > B hay A = B, BETADIST() tr v  li #NUM! * Nu b  s d beta chu  Tr v ngho c  t, )  hoch d  ng s ln m rt, bic thi gian b sung k v bii. : = BETAINV(probability, alpha, beta, A, B) t ca bin c  alpha & beta : Tham s ci. A : Ci ca khong x, m B : Ca khong x, m  * Nt k i s , BETAINV() tr v  li #VALUE! * N v  li #NUM! * N v  li #NUM! * Nu b nh A = 0  s d beta chu * BETAINV() s d i. Vc, BETAINV() lp cho ti khi kt qu i t sau 100 ln l tr v  li #NA! : BETAINV(0.6854706, 8, 10, 1, 3) = 2  Tr v t ca nhng ln th i nh   ng c , khi kt qu c ch t b c lt c th nghim.   t khong hai pha tr  trai. : = BINOMDIST(number_s, trials, probability_s, cumulative) Number_s : S ln th . Trials : S ln th. a m. Cumulative : M  t. = 1 (TRUE) : BINOMDIST() tr v  l number_s ln nht. = 0 (FALSE) : BINOMDIST() tr v  su l  * Nu  th c ct b phn l  tr   * N, BINOMDIST() tr v  li #VALUE! * Nu number_s < 0 hay number_s > trials, BINOMDIST() tr v  li #NUM! * Nu probability_s < 0 hay probability_s > 1, BINOMDIST() tr v  li #NUM! : BINOMDIST(6, 10, 0.5, 0) = 0.2050781 BINOMDIST(6, 10, 0.5, 1) = 0.828125  Tr v t mi chi-squared. i chi-squared kt hp v chi-   v k vng. , mm v di truy gi thit rng th h k tip cng s tha ng mt tp h c v tr k v thc gi thi : = CHIDIST(x, degrees_freedom)   i. degrees_freedom : S bc t do.  * Ni s , CHIDIST() tr v  li #VALUE! * Nu x < 0, CHIDIST() tr v  li #NUM! * N n th b ct b  tr   * Nu degrees_freedom < 1 hay degrees_freedom > 10^10, CHIDIST() tr v  li #NUM! c: CHIDIST = P(X > x), vn ng- squared. : CHIDIST(18.307, 10) = 0.050001  Tr v ngho cn. : = NORMINV(probability, mean, standard_dev) t ng vi chun  ng ci  lch chun ci  * Nt k i s , NORMINV() s i #VALUE! * Nu probability nh c l i #NUM! * Nu standard_dev nh c bng 0, NORMDINV() s i #NUM! * N  chun. * NORMINV() s dp l u NORMINi t sau 100 ln l i #NA! Chương 4: Khai Thác Cơ Sở Dữ Liệu 4.1. Sort (sắp xếp) và Filter (lọc) Sort (sắp xếp) và Filter (lọc) là những tính năng cho phép bạn thao tác dữ liệu    Sắp xếp   Sort & Filter Home Sort Ascending (A-Z) hay Sort Descending (Z-A) Tùy chỉnh sắp xếp  Sort & Filter   Add Level  OK Lọc dữ liệu     Filter  Text Filter Words  . nY LI.   u xy ra l MS Excel 2003 tr v t biu thc. Nu biu thc p. u nh ng chi c.  nhp trc tic, Excel s hit biu th   B