x2值表
互联网
n' |
P |
||||||||||||
0.995 |
0.990 |
0.975 |
0.950 |
0.900 |
0.750 |
0.500 |
0.250 |
0.100 |
0.050 |
0.025 |
0.010 |
0.005 |
|
1 |
… |
… |
… |
… |
0.02 |
0.10 |
0.45 |
1.32 |
2.71 |
3.84 |
5.02 |
6.63 |
7.88 |
2 |
0.01 |
0.02 |
0.02 |
0.10 |
0.21 |
0.58 |
1.39 |
2.77 |
4.61 |
5.99 |
7.38 |
9.21 |
10.60 |
3 |
0.07 |
0.11 |
0.22 |
0.35 |
0.58 |
1.21 |
2.37 |
4.11 |
6.25 |
7.81 |
9.35 |
11.34 |
12.84 |
4 |
0.21 |
0.30 |
0.48 |
0.71 |
1.06 |
1.92 |
3.36 |
5.39 |
7.78 |
9.49 |
11.14 |
13.28 |
14.86 |
5 |
0.41 |
0.55 |
0.83 |
1.15 |
1.61 |
2.67 |
4.35 |
6.63 |
9.24 |
11.07 |
12.83 |
15.09 |
16.75 |
6 |
0.68 |
0.87 |
1.24 |
1.64 |
2.20 |
3.45 |
5.35 |
7.84 |
10.64 |
12.59 |
14.45 |
16.81 |
18.55 |
7 |
0.99 |
1.24 |
1.69 |
2.17 |
2.83 |
4.25 |
6.35 |
9.04 |
12.02 |
14.07 |
16.01 |
18.48 |
20.28 |
8 |
1.34 |
1.65 |
2.18 |
2.73 |
3.40 |
5.07 |
7.34 |
10.22 |
13.36 |
15.51 |
17.53 |
20.09 |
21.96 |
9 |
1.73 |
2.09 |
2.70 |
3.33 |
4.17 |
5.90 |
8.34 |
11.39 |
14.68 |
16.92 |
19.02 |
21.67 |
23.59 |
10 |
2.16 |
2.56 |
3.25 |
3.94 |
4.87 |
6.74 |
9.34 |
12.55 |
15.99 |
18.31 |
20.48 |
23.21 |
25.19 |
11 |
2.60 |
3.05 |
3.82 |
4.57 |
5.58 |
7.58 |
10.34 |
13.70 |
17.28 |
19.68 |
21.92 |
24.72 |
26.76 |
12 |
3.07 |
3.57 |
4.40 |
5.23 |
6.30 |
8.44 |
11.34 |
14.85 |
18.55 |
21.03 |
23.34 |
26.22 |
28.30 |
13 |
3.57 |
4.11 |
5.01 |
5.89 |
7.04 |
9.30 |
12.34 |
15.98 |
19.81 |
22.36 |
24.74 |
27.69 |
29.82 |
14 |
4.07 |
4.66 |
5.63 |
6.57 |
7.79 |
10.17 |
13.34 |
17.12 |
21.06 |
23.68 |
26.12 |
29.14 |
31.32 |
15 |
4.60 |
5.23 |
6.27 |
7.26 |
8.55 |
11.04 |
14.34 |
18.25 |
22.31 |
25.00 |
27.49 |
30.58 |
32.80 |
16 |
5.14 |
5.81 |
6.91 |
7.96 |
9.31 |
11.91 |
15.34 |
19.37 |
23.54 |
26.30 |
28.85 |
32.00 |
34.27 |
17 |
5.70 |
6.41 |
7.56 |
8.67 |
10.09 |
12.79 |
16.34 |
20.49 |
24.77 |
27.59 |
30.19 |
33.41 |
35.72 |
18 |
6.26 |
7.01 |
8.23 |
9.39 |
10.86 |
13.68 |
17.34 |
21.60 |
25.99 |
28.87 |
31.53 |
34.81 |
37.16 |
19 |
6.84 |
7.63 |
8.91 |
10.12 |
11.65 |
14.56 |
18.34 |
22.72 |
27.20 |
30.14 |
32.85 |
36.19 |
38.58 |
20 |
7.43 |
8.26 |
9.59 |
10.85 |
12.44 |
15.45 |
19.34 |
23.83 |
28.41 |
31.41 |
34.17 |
37.57 |
40.00 |
21 |
8.03 |
8.90 |
10.28 |
11.59 |
13.24 |
16.34 |
20.34 |
24.93 |
29.62 |
32.67 |
35.48 |
38.93 |
41.40 |
22 |
8.64 |
9.54 |
10.98 |
12.34 |
14.04 |
17.24 |
21.34 |
26.04 |
30.81 |
33.92 |
36.78 |
40.29 |
42.80 |
23 |
9.26 |
10.20 |
11.69 |
13.09 |
14.85 |
18.14 |
22.34 |
27.14 |
32.01 |
35.17 |
38.08 |
41.64 |
44.18 |
24 |
9.89 |
10.86 |
12.40 |
13.85 |
15.66 |
19.04 |
23.34 |
28.24 |
33.20 |
36.42 |
39.36 |
42.98 |
45.56 |
25 |
10.52 |
11.52 |
13.12 |
14.61 |
16.47 |
19.94 |
24.34 |
29.34 |
34.38 |
37.65 |
40.65 |
44.31 |
46.93 |
26 |
11.16 |
12.20 |
13.84 |
15.38 |
17.29 |
20.84 |
25.34 |
30.43 |
35.56 |
38.89 |
41.92 |
45.64 |
48.29 |
27 |
11.81 |
12.88 |
14.57 |
16.15 |
18.11 |
21.75 |
26.34 |
31.53 |
36.74 |
40.11 |
43.19 |
46.96 |
49.64 |
28 |
12.46 |
13.56 |
15.31 |
16.93 |
18.94 |
22.66 |
27.34 |
32.62 |
37.92 |
41.34 |
44.46 |
48.28 |
50.99 |
29 |
13.12 |
14.26 |
16.05 |
17.71 |
19.77 |
23.57 |
28.34 |
33.71 |
39.09 |
42.56 |
45.72 |
49.59 |
52.34 |
30 |
13.79 |
14.95 |
16.79 |
18.49 |
20.60 |
24.48 |
29.34 |
34.80 |
40.26 |
43.77 |
46.98 |
50.89 |
53.67 |
40 |
20.71 |
22.16 |
24.43 |
26.51 |
29.05 |
33.66 |
39.34 |
45.62 |
51.80 |
55.76 |
59.34 |
63.69 |
66.77 |
50 |
27.99 |
29.71 |
32.36 |
34.76 |
37.69 |
42.94 |
49.33 |
56.33 |
63.17 |
67.50 |
71.42 |
76.15 |
79.49 |
60 |
35.53 |
37.48 |
40.48 |
43.19 |
46.46 |
52.29 |
59.33 |
66.98 |
74.40 |
79.08 |
83.30 |
88.38 |
91.95 |
70 |
43.28 |
45.44 |
48.76 |
51.74 |
55.33 |
61.70 |
69.33 |
77.58 |
85.53 |
90.53 |
95.02 |
100.42 |
104.22 |
80 |
51.17 |
53.54 |
57.15 |
60.39 |
64.28 |
71.14 |
79.33 |
88.13 |
96.58 |
101.88 |
106.63 |
112.33 |
116.32 |
90 |
59.20 |
61.75 |
65.65 |
69.13 |
73.29 |
80.62 |
89.33 |
98.64 |
107.56 |
113.14 |
118.14 |
124.12 |
128.30 |
100 |
67.33 |
70.06 |
74.22 |
77.93 |
82.36 |
90.13 |
99.33 |
109.14 |
118.50 |
124.34 |
129.56 |
135.81 |
140.17 |
注:自由度的符号本书统一用ν,但若沿用n’也不为错。