X²
=
Alpha (probabilité)
d.d.l
0,90
0,50
0,30
0,20
0,10
0,05
0,02
0,01
0,001
1
0,0158
0,455
1,074
1,642
2,706
3,841
5,412
6,635
10,827
2
0,211
1,386
2,408
3,219
4,605
5,991
7,824
9,210
13,815
3
0,584
2,366
3,665
4,642
6,251
7,815
9,837
11,345
16,266
4
1,064
3,357
4,878
5,989
7,779
9,488
11,668
13,277
18,467
5
1,610
4,351
6,064
7,289
9,236
11,070
13,388
15,086
20,515
6
2,204
5,348
7,231
8,558
10,645
12,592
15,033
16,812
22,457
7
2,833
6,346
8,383
9,803
12,017
14,067
16,622
18,475
24,322
8
3,490
7,344
9,524
11,030
13,362
15,507
18,168
20,090
27,877
9
4,168
8,343
10,656
12,242
14,684
16,919
19,679
21,666
27,877
10
4,865
9,342
11,781
13,442
15,987
18,307
21,161
23,309
29,588
11
5,578
10,341
12,899
14,631
17,275
19,675
22,618
24,725
31,264
12
6,304
11,340
14,011
15,812
18,549
21,026
24,054
26,217
32,909
13
7,042
12,340
15,119
16,985
19,812
22,362
25,472
27,688
34,528
14
7,790
13,339
16,222
18,151
21,064
23,685
26,873
29,141
36,123
15
8,547
14,339
17,322
19,311
22,307
24,996
28,259
30,578
37,697
16
9,312
15,338
18,418
20,465
23,542
26,296
29,633
32,000
39,252
d.d.l = (nombre de lignes - 1) * (nombres de colonnes - 1)
