Excel中，编制卡方分布临界值表

Posted 2020-10-01 靠谱小姐

一、利用Excel中CHIINV()函数可以生成卡方分布概率值。函数格式：CHIINV（概率，自由度）

注：NORMSDIST()标准正态分布表；NORMSINV()标准正态分布分位数表；TINV()t分布临界值表；FINV()F分布临界值表

二、在Excel中，在B2单元格输入公式"=CHIINV(B$1,$A2)",然后向下向右复制即可得到卡方分布临界值表。如下表所示（部分，df/a自行输入）：

卡方分布临界值表
df/a	0.995	0.99	0.975	0.95	0.9	0.1	0.05	0.025	0.01	0.005
1	3.92704E-05	0.0001571	0.000982	0.003932	0.015791	2.705543	3.841459	5.023886	6.634897	7.879439
2	0.010025084	0.0201007	0.050636	0.102587	0.210721	4.60517	5.991465	7.377759	9.21034	10.59663
3	0.071721775	0.1148318	0.215795	0.351846	0.584374	6.251389	7.814728	9.348404	11.34487	12.83816
4	0.206989093	0.2971095	0.484419	0.710723	1.063623	7.77944	9.487729	11.14329	13.2767	14.86026
5	0.411741904	0.5542981	0.831212	1.145476	1.610308	9.236357	11.0705	12.8325	15.08627	16.7496
6	0.675726777	0.8720903	1.237344	1.635383	2.204131	10.64464	12.59159	14.44938	16.81189	18.54758
7	0.989255683	1.2390423	1.689869	2.16735	2.833107	12.01704	14.06714	16.01276	18.47531	20.27774
8	1.344413087	1.6464974	2.179731	2.732637	3.489539	13.36157	15.50731	17.53455	20.09024	21.95495
9	1.734932905	2.0879007	2.700389	3.325113	4.168159	14.68366	16.91898	19.02277	21.66599	23.58935
10	2.155856481	2.5582122	3.246973	3.940299	4.865182	15.98718	18.30704	20.48318	23.20925	25.18818
11	2.603221891	3.0534841	3.815748	4.574813	5.577785	17.27501	19.67514	21.92005	24.72497	26.75685
12	3.073823638	3.570569	4.403789	5.226029	6.303796	18.54935	21.02607	23.33666	26.21697	28.29952
13	3.56503458	4.1069155	5.008751	5.891864	7.041505	19.81193	22.36203	24.7356	27.68825	29.81947
14	4.074674957	4.6604251	5.628726	6.570631	7.789534	21.06414	23.68479	26.11895	29.14124	31.31935
15	4.600915572	5.2293489	6.262138	7.260944	8.546756	22.30713	24.99579	27.48839	30.57791	32.80132
16	5.142205443	5.8122125	6.907664	7.961646	9.312236	23.54183	26.29623	28.84535	31.99993	34.26719
17	5.697217101	6.4077598	7.564186	8.67176	10.08519	24.76904	27.58711	30.19101	33.40866	35.71847
18	6.264804685	7.0149109	8.230746	9.390455	10.86494	25.98942	28.8693	31.52638	34.80531	37.15645
19	6.843971445	7.6327296	8.906516	10.11701	11.65091	27.20357	30.14353	32.85233	36.19087	38.58226
20	7.433844263	8.2603983	9.590777	10.85081	12.44261	28.41198	31.41043	34.16961	37.56623	39.99685
21	8.03365342	8.8971979	10.2829	11.59131	13.2396	29.61509	32.67057	35.47888	38.93217	41.40106
22	8.642716401	9.5424923	10.98232	12.33801	14.04149	30.81328	33.92444	36.78071	40.28936	42.79565
23	9.260424776	10.195716	11.68855	13.09051	14.84796	32.0069	35.17246	38.07563	41.6384	44.18128
24	9.886233502	10.856361	12.40115	13.84843	15.65868	33.19624	36.41503	39.36408	42.97982	45.55851
25	10.51965211	11.523975	13.11972	14.61141	16.47341	34.38159	37.65248	40.64647	44.3141	46.92789
26	11.16023741	12.198147	13.8439	15.37916	17.29188	35.56317	38.88514	41.92317	45.64168	48.28988
27	11.80758735	12.878504	14.57338	16.1514	18.1139	36.74122	40.11327	43.19451	46.96294	49.64492
28	12.46133595	13.56471	15.30786	16.92788	18.93924	37.91592	41.33714	44.46079	48.27824	50.99338
29	13.12114889	14.256455	16.04707	17.70837	19.76774	39.08747	42.55697	45.72229	49.58788	52.33562
30	13.78671986	14.953457	16.79077	18.49266	20.59923	40.25602	43.77297	46.97924	50.89218	53.67196