Reliability & Life Testing Handbook, Volume 1

Appendix D: Chi-Square Distribution Percentile Values


?

0.995

0.99

0.98

0.975

0.95

0.90

0.85

0.80

0.75

0.70

0.60

0.50

0.40

0.30

0.25

0.20

0.15

0.10

0.05

0.025

0.02

0.01

0.005

0.001

v

1

0.0000

0.0002

0.0006

0.0010

0.0039

0.0158

0.0358

0.0642

0.1015

0.1485

0.2750

0.4549

0.7083

1.0742

1.3233

1.6423

2.0722

2.7054

3.8415

5.0239

5.4119

6.6348

7.8794

10.8281

2

0.0100

0.0201

0.0404

0.0506

0.1026

0.2107

0.3250

0.4463

0.5754

0.7133

1.0216

1.3863

1.8326

2.4079

2.7726

3.2189

3.7942

4.6052

5.9915

7.3777

7.8240

9.2104

10.5967

13.8164

3

0.0717

0.1148

0.1848

0.2158

0.3518

0.5844

0.7978

1.0052

1.2125

1.4237

1.8692

2.3660

2.9462

3.6649

4.1083

4.6416

5.3170

6.2514

7.8147

9.3484

9.8374

11.3447

12.8379

16.2656

4

0.2070

0.2971

0.4294

0.4844

0.7107

1.0636

1.3665

1.6488

1.9226

2.1947

2.7528

3.3567

4.0446

4.8784

5.3853

5.9886

6.7449

7.7794

9.4877

11.1433

11.6678

13.2769

14.8604

18.4688

5

0.4117

0.5543

0.7519

0.8312

1.1455

1.6103

1.9938

2.3425

2.6746

2.9999

3.6555

4.3515

5.1319

6.0644

6.6257

7.2893

8.1152

9.2364

11.0705

12.8325

13.3882

15.0864

16.7500

20.5156

6

0.6757

0.8721

1.1344

1.2373

1.6354

2.2041

2.6613

3.0701

3.4546

3.8275

4.5702

5.3481

6.2108

7.2311

7.8408

8.5581

9.4461

10.6447

12.5916

14.4495

15.0332

16.8120

18.5479

22.4570

7

0.9893

1.2390

1.5643

1.6899

2.1674

2.8331

3.3583

3.8223

4.2549

4.6713

5.4932

6.3458

7.2832

8.3834

9.0371

9.8033

10.7479

12.0170

14.0671

16.0127

16.6223

18.4751

20.2773

24.3203

8

1.3445

1.6465

2.0325

2.1797

2.7326

3.4895

4.0782

4.5936

5.0706

5.5274

6.4226

7.3441

8.3505

9.5245

10.2188

11.0301

12.0271

13.3616

15.5073

17.5345

18.1682

20.0903

21.9551

26.1250

9

1.7349

2.0879

2.5323

2.7004

3.3251

4.1682

4.8165

5.3801

5.8988

6.3933

7.3570

8.3428

9.4136

10.6564

11.3888

12.2422

13.2880

14.6837

16.9189

19.0227

19.6790

21.6660

23.5898

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