Distribution normale réduite

Lecture de la table:

Pour z=1.24 (intersection de la ligne 1.2 et de la colonne 0.04),
on a la proportion P(Z < z) = 0.8925

Rappels:
1/ P(Z > z) = 1 - P(Z < z) et 2/ P(Z < -z) = P(Z > z)
 
Exemple: Sachant P(Z < 1.24) = 0.8925, on en déduit
(selon 1/): (P(Z > 1.24) = 1 - P(Z < 1.24) = 1- 0.8925 = 0.1075
(selon 2/): P(Z < -1.24) = P(Z > 1.24) = 0.1075

 

 

                P(Z > 1.96) = .025

                P(Z > 2.58) = .005

                P(Z > 3.29) = .0005

z

0.00

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.0

0.5000

0.5040

0.5080

0.5120

0.5160

0.5199

0.5239

0.5279

0.5319

0.5359

0.1

0.5398

0.5438

0.5478

0.5517

0.5557

0.5596

0.5636

0.5675

0.5714

0.5753

0.2

0.5793

0.5832

0.5871

0.5910

0.5948

0.5987

0.6026

0.6064

0.6103

0.6141

0.3

0.6179

0.6217

0.6255

0.6293

0.6331

0.6368

0.6406

0.6443

0.6480

0.6517

0.4

0.6554

0.6591

0.6628

0.6664

0.6700

0.6736

0.6772

0.6808

0.6844

0.6879

0.5

0.6915

0.6950

0.6985

0.7019

0.7054

0.7088

0.7123

0.7157

0.7190

0.7224

0.6

0.7257

0.7291

0.7324

0.7357

0.7389

0.7422

0.7454

0.7486

0.7517

0.7549

0.7

0.7580

0.7611

0.7642

0.7673

0.7704

0.7734

0.7764

0.7794

0.7823

0.7852

0.8

0.7881

0.7910

0.7939

0.7967

0.7995

0.8023

0.8051

0.8078

0.8106

0.8133

0.9

0.8159

0.8186

0.8212

0.8238

0.8264

0.8289

0.8315

0.8340

0.8365

0.8389

1.0

0.8413

0.8438

0.8461

0.8485

0.8508

0.8531

0.8554

0.8577

0.8599

0.8621

1.1

0.8643

0.8665

0.8686

0.8708

0.8729

0.8749

0.8770

0.8790

0.8810

0.8830

1.2

0.8849

0.8869

0.8888

0.8907

0.8925

0.8944

0.8962

0.8980

0.8997

0.9015

1.3

0.9032

0.9049

0.9066

0.9082

0.9099

0.9115

0.9131

0.9147

0.9162

0.9177

1.4

0.9192

0.9207

0.9222

0.9236

0.9251

0.9265

0.9279

0.9292

0.9306

0.9319

1.5

0.9332

0.9345

0.9357

0.9370

0.9382

0.9394

0.9406

0.9418

0.9429

0.9441

1.6

0.9452

0.9463

0.9474

0.9484

0.9495

0.9505

0.9515

0.9525

0.9535

0.9545

1.7

0.9554

0.9564

0.9573

0.9582

0.9591

0.9599

0.9608

0.9616

0.9625

0.9633

1.8

0.9641

0.9649

0.9656

0.9664

0.9671

0.9678

0.9686

0.9693

0.9699

0.9706

1.9

0.9713

0.9719

0.9726

0.9732

0.9738

0.9744

0.9750

0.9756

0.9761

0.9767

2.0

0.9772

0.9778

0.9783

0.9788

0.9793

0.9798

0.9803

0.9808

0.9812

0.9817

2.1

0.9821

0.9826

0.9830

0.9834

0.9838

0.9842

0.9846

0.9850

0.9854

0.9857

2.2

0.9861

0.9864

0.9868

0.9871

0.9875

0.9878

0.9881

0.9884

0.9887

0.9890

2.3

0.9893

0.9896

0.9898

0.9901

0.9904

0.9906

0.9909

0.9911

0.9913

0.9916

2.4

0.9918

0.9920

0.9922

0.9925

0.9927

0.9929

0.9931

0.9932

0.9934

0.9936

2.5

0.9938

0.9940

0.9941

0.9943

0.9945

0.9946

0.9948

0.9949

0.9951

0.9952

2.6

0.9953

0.9955

0.9956

0.9957

0.9959

0.9960

0.9961

0.9962

0.9963

0.9964

2.7

0.9965

0.9966

0.9967

0.9968

0.9969

0.9970

0.9971

0.9972

0.9973

0.9974

2.8

0.9974

0.9975

0.9976

0.9977

0.9977

0.9978

0.9979

0.9979

0.9980

0.9981

2.9

0.9981

0.9982

0.9982

0.9983

0.9984

0.9984

0.9985

0.9985

0.9986

0.9986

3.0

0.99865

0.99869

0.99874

0.99878

0.99882

0.99886

0.99889

0.99893

0.99896

0.99900

3.1

0.99903

0.99906

0.99910

0.99913

0.99916

0.99918

0.99921

0.99924

0.99926

0.99929

3.2

0.99931

0.99934

0.99936

0.99938

0.99940

0.99942

0.99944

0.99946

0.99948

0.99950

3.3

0.99952

0.99953

0.99955

0.99957

0.99958

0.99960

0.99961

0.99962

0.99964

0.99965

3.4

0.99966

0.99968

0.99969

0.99970

0.99971

0.99972

0.99973

0.99974

0.99975

0.99976

3.5

0.99977

0.99978

0.99978

0.99979

0.99980

0.99981

0.99981

0.99982

0.99983

0.99983

3.6

0.99984

0.99985

0.99985

0.99986

0.99986

0.99987

0.99987

0.99988

0.99988

0.99989

3.7

0.99989

0.99990

0.99990

0.99990

0.99991

0.99991

0.99992

0.99992

0.99992

0.99992

3.8

0.99993

0.99993

0.99993

0.99994

0.99994

0.99994

0.99994

0.99995

0.99995

0.99995

3.9

0.99995

0.99995

0.99996

0.99996

0.99996

0.99996

0.99996

0.99996

0.99997

0.99997

4.0

0.99997

0.99997

0.99997

0.99997

0.99997

0.99997

0.99998

0.99998

0.99998

0.99998