Normal na Pamamahagi

Ang normal na distribution ay isang tuluy-tuloy na probability distribution.Tinatawag din itong Gaussian distribution.

Ang normal na distribution density function na f (z) ay tinatawag na Bell Curve dahil mayroon itong hugis na kahawig ng isang kampana.

Ang standard normal distribution table ay ginagamit upang mahanap ang lugar sa ilalim ng f ( z ) function upang mahanap ang probabilidad ng isang tinukoy na hanay ng distribution.

Normal na function ng pamamahagi

Kapag ang random variable X ay may normal na distribusyon,

Ang probability density function at cumulative distribution function ng normal distribution:

 

Probability density function (pdf)

Ang probability density function ay ibinibigay ng:

f_{X}(x)=\frac{1}{\sigma\sqrt{2\pi}}e^{-\frac{(x-\mu)^2}{2\sigma^2}}

Ang X ay ang random na variable.

μ ang ibig sabihin ng halaga.

Ang σ ay ang standard deviation (std) na halaga.

e = 2.7182818... pare-pareho.

π = 3.1415926... pare-pareho.

 

Pinagsama-samang pagpapaandar ng pamamahagi

Ang pinagsama-samang pagpapaandar ng pamamahagi ay ibinibigay ng:

F_{X}(x)=\frac{1}{\sigma\sqrt{2\pi}}\int_{-\infty}^{x}e^{-\frac{(y-\mu)^2 }{2\sigma^2}}dy

Ang X ay ang random na variable.

μ ang ibig sabihin ng halaga.

Ang σ ay ang standard deviation (std) na halaga.

e = 2.7182818... pare-pareho.

π = 3.1415926... pare-pareho.

Karaniwang normal na function ng pamamahagi

Kailan

Pagkatapos ay ang probability density function at cumulative distribution function ng standard normal distribution:

Probability density function

Pinagsama-samang pagpapaandar ng pamamahagi

Karaniwang normal na talahanayan ng pamamahagi

z Φ( z ) φ( z )
0.00 0.5000 0.3989
0.01 0.5040 0.3989
0.02 0.5080 0.3989
0.03 0.5120 0.3988
0.04 0.5160 0.3986
0.05 0.5199 0.3984
0.06 0.5239 0.3982
0.07 0.5279 0.3980
0.08 0.5319 0.3977
0.09 0.5359 0.3973
0.10 0.5398 0.3970
0.11 0.5438 0.3965
0.12 0.5478 0.3961
0.13 0.5517 0.3956
0.14 0.5557 0.3951
0.15 0.5596 0.3945
0.16 0.5636 0.3939
0.17 0.5675 0.3932
0.18 0.5714 0.3925
0.19 0.5753 0.3918
0.20 0.5793 0.3910
0.21 0.5832 0.3902
0.22 0.5871 0.3894
0.23 0.5910 0.3885
0.24 0.5948 0.3876
0.25 0.5987 0.3867
0.26 0.6026 0.3857
0.27 0.6064 0.3847
0.28 0.6103 0.3836
0.29 0.6141 0.3825
0.30 0.6179 0.3814
0.31 0.6217 0.3802
0.32 0.6255 0.3790
0.33 0.6293 0.3778
0.34 0.6331 0.3765
0.35 0.6368 0.3752
0.36 0.6406 0.3739
0.37 0.6443 0.3725
0.38 0.6480 0.3712
0.39 0.6517 0.3697
0.40 0.6554 0.3683
0.41 0.6591 0.3668
0.42 0.6628 0.3653
0.43 0.6664 0.3637
0.44 0.6700 0.3621
0.45 0.6736 0.3605
0.46 0.6772 0.3589
0.47 0.6808 0.3572
0.48 0.6844 0.3555
0.49 0.6879 0.3538
0.50 0.6915 0.3521
0.51 0.6950 0.3503
0.52 0.6985 0.3485
0.53 0.7019 0.3467
0.54 0.7054 0.3448
0.55 0.7088 0.3429
0.56 0.7123 0.3410
0.57 0.7157 0.3391
0.58 0.7190 0.3372
0.59 0.7224 0.3352
0.60 0.7257 0.3332
0.61 0.7291 0.3312
0.62 0.7324 0.3292
0.63 0.7357 0.3271
0.64 0.7389 0.3251
0.65 0.7422 0.3230
0.66 0.7454 0.3209
0.67 0.7486 0.3187
0.68 0.7517 0.3166
0.69 0.7549 0.3144
0.70 0.7580 0.3123
0.71 0.7611 0.3101
0.72 0.7642 0.3079
0.73 0.7673 0.3056
0.74 0.7704 0.3034
0.75 0.7734 0.3011
0.76 0.7764 0.2989
0.77 0.7794 0.2966
0.78 0.7823 0.2943
0.79 0.7852 0.2920
0.80 0.7881 0.2897
0.81 0.7910 0.2874
0.82 0.7939 0.2850
0.83 0.7967 0.2827
0.84 0.7995 0.2803
0.85 0.8023 0.2780
0.86 0.8051 0.2756
0.87 0.8078 0.2732
0.88 0.8106 0.2709
0.89 0.8133 0.2685
0.90 0.8159 0.2661
0.91 0.8186 0.2637
0.92 0.8212 0.2613
0.93 0.8238 0.2589
0.94 0.8264 0.2565
0.95 0.8289 0.2541
0.96 0.8315 0.2516
0.97 0.8340 0.2492
0.98 0.8365 0.2468
0.99 0.8389 0.2444
1.00 0.8413 0.2420
1.01 0.8438 0.2396
1.02 0.8461 0.2371
1.03 0.8485 0.2347
1.04 0.8508 0.2323
1.05 0.8531 0.2299
1.06 0.8554 0.2275
1.07 0.8577 0.2251
1.08 0.8599 0.2227
1.09 0.8621 0.2203
1.10 0.8643 0.2179
1.11 0.8665 0.2155
1.12 0.8686 0.2131
1.13 0.8708 0.2107
1.14 0.8729 0.2083
1.15 0.8749 0.2059
1.16 0.8770 0.2036
1.17 0.8790 0.2012
1.18 0.8810 0.1989
1.19 0.8830 0.1965
1.20 0.8849 0.1942
1.21 0.8869 0.1919
1.22 0.8888 0.1895
1.23 0.8907 0.1872
1.24 0.8925 0.1849
1.25 0.8944 0.1826
1.26 0.8962 0.1804
1.27 0.8980 0.1781
1.28 0.8997 0.1758
1.29 0.9015 0.1736
1.30 0.9032 0.1714
1.31 0.9049 0.1691
1.32 0.9066 0.1669
1.33 0.9082 0.1647
1.34 0.9099 0.1626
1.35 0.9115 0.1604
1.36 0.9131 0.1582
1.37 0.9147 0.1561
1.38 0.9162 0.1539
1.39 0.9177 0.1518
1.40 0.9192 0.1497
1.41 0.9207 0.1476
1.42 0.9222 0.1456
1.43 0.9236 0.1435
1.44 0.9251 0.1415
1.45 0.9265 0.1394
1.46 0.9279 0.1374
1.47 0.9292 0.1354
1.48 0.9306 0.1334
1.49 0.9319 0.1315
1.50 0.9332 0.1295
1.51 0.9345 0.1276
1.52 0.9357 0.1257
1.53 0.9370 0.1238
1.54 0.9382 0.1219
1.55 0.9394 0.1200
1.56 0.9406 0.1182
1.57 0.9418 0.1163
1.58 0.9429 0.1145
1.59 0.9441 0.1127
1.60 0.9452 0.1109
1.61 0.9463 0.1092
1.62 0.9474 0.1074
1.63 0.9484 0.1057
1.64 0.9495 0.1040
1.65 0.9505 0.1023
1.66 0.9515 0.1006
1.67 0.9525 0.0989
1.68 0.9535 0.0973
1.69 0.9545 0.0957
1.70 0.9554 0.0940
1.71 0.9564 0.0925
1.72 0.9573 0.0909
1.73 0.9582 0.0893
1.74 0.9591 0.0878
1.75 0.9599 0.0863
1.76 0.9608 0.0848
1.77 0.9616 0.0833
1.78 0.9625 0.0818
1.79 0.9633 0.0804
1.80 0.9641 0.0790
1.81 0.9649 0.0775
1.82 0.9656 0.0761
1.83 0.9664 0.0748
1.84 0.9671 0.0734
1.85 0.9678 0.0721
1.86 0.9686 0.0707
1.87 0.9693 0.0694
1.88 0.9699 0.0681
1.89 0.9706 0.0669
1.90 0.9713 0.0656
1.91 0.9719 0.0644
1.92 0.9726 0.0632
1.93 0.9732 0.0620
1.94 0.9738 0.0608
1.95 0.9744 0.0596
1.96 0.9750 0.0584
1.97 0.9756 0.0573
1.98 0.9761 0.0562
1.99 0.9767 0.0551
2.00 0.9772 0.0540
2.01 0.9778 0.0529
2.02 0.9783 0.0519
2.03 0.9788 0.0508
2.04 0.9793 0.0498
2.05 0.9798 0.0488
2.06 0.9803 0.0478
2.07 0.9808 0.0468
2.08 0.9812 0.0459
2.09 0.9817 0.0449
2.10 0.9821 0.0440
2.11 0.9826 0.0431
2.12 0.9830 0.0422
2.13 0.9834 0.0413
2.14 0.9838 0.0404
2.15 0.9842 0.0396
2.16 0.9846 0.0387
2.17 0.9850 0.0379
2.18 0.9854 0.0371
2.19 0.9857 0.0363
2.20 0.9861 0.0355
2.21 0.9864 0.0347
2.22 0.9868 0.0339
2.23 0.9871 0.0332
2.24 0.9875 0.0325
2.25 0.9878 0.0317
2.26 0.9881 0.0310
2.27 0.9884 0.0303
2.28 0.9887 0.0297
2.29 0.9890 0.0290
2.30 0.9893 0.0283
2.31 0.9896 0.0277
2.32 0.9898 0.0270
2.33 0.9901 0.0264
2.34 0.9904 0.0258
2.35 0.9906 0.0252
2.36 0.9909 0.0246
2.37 0.9911 0.0241
2.38 0.9913 0.0235
2.39 0.9916 0.0229
2.40 0.9918 0.0224
2.41 0.9920 0.0219
2.42 0.9922 0.0213
2.43 0.9925 0.0208
2.44 0.9927 0.0203
2.45 0.9929 0.0198
2.46 0.9931 0.0194
2.47 0.9932 0.0189
2.48 0.9934 0.0184
2.49 0.9936 0.0180
2.50 0.9938 0.0175
2.51 0.9940 0.0171
2.52 0.9941 0.0167
2.53 0.9943 0.0163
2.54 0.9945 0.0158
2.55 0.9946 0.0154
2.56 0.9948 0.0151
2.57 0.9949 0.0147
2.58 0.9951 0.0143
2.59 0.9952 0.0139
2.60 0.9953 0.0136
2.61 0.9955 0.0132
2.62 0.9956 0.0129
2.63 0.9957 0.0126
2.64 0.9959 0.0122
2.65 0.9960 0.0119
2.66 0.9961 0.0116
2.67 0.9962 0.0113
2.68 0.9963 0.0110
2.69 0.9964 0.0107
2.70 0.9965 0.0104
2.71 0.9966 0.0101
2.72 0.9967 0.0099
2.73 0.9968 0.0096
2.74 0.9969 0.0093
2.75 0.9970 0.0091
2.76 0.9971 0.0088
2.77 0.9972 0.0086
2.78 0.9973 0.0084
2.79 0.9974 0.0081
2.80 0.9974 0.0079
2.81 0.9975 0.0077
2.82 0.9976 0.0075
2.83 0.9977 0.0073
2.84 0.9977 0.0071
2.85 0.9978 0.0069
2.86 0.9979 0.0067
2.87 0.9979 0.0065
2.88 0.9980 0.0063
2.89 0.9981 0.0061
2.90 0.9981 0.0060
2.91 0.9982 0.0058
2.92 0.9982 0.0056
2.93 0.9983 0.0055
2.94 0.9984 0.0053
2.95 0.9984 0.0051
2.96 0.9985 0.0050
2.97 0.9985 0.0048
2.98 0.9986 0.0047
2.99 0.9986 0.0046
3.00 0.9987 0.0044
3.01 0.9987 0.0043
3.02 0.9987 0.0042
3.03 0.9988 0.0040
3.04 0.9988 0.0039
3.05 0.9989 0.0038
3.06 0.9989 0.0037
3.07 0.9989 0.0036
3.08 0.9990 0.0035
3.09 0.9990 0.0034
3.10 0.9990 0.0033
3.11 0.9991 0.0032
3.12 0.9991 0.0031
3.13 0.9991 0.0030
3.14 0.9992 0.0029
3.15 0.9992 0.0028
3.16 0.9992 0.0027
3.17 0.9992 0.0026
3.18 0.9993 0.0025
3.19 0.9993 0.0025
3.20 0.9993 0.0024
3.21 0.9993 0.0023
3.22 0.9994 0.0022
3.23 0.9994 0.0022
3.24 0.9994 0.0021
3.25 0.9994 0.0020
3.26 0.9994 0.0020
3.27 0.9995 0.0019
3.28 0.9995 0.0018
3.29 0.9995 0.0018
3.30 0.9995 0.0017
3.31 0.9995 0.0017
3.32 0.9995 0.0016
3.33 0.9996 0.0016
3.34 0.9996 0.0015
3.35 0.9996 0.0015
3.36 0.9996 0.0014
3.37 0.9996 0.0014
3.38 0.9996 0.0013
3.39 0.9997 0.0013
3.40 0.9997 0.0012
3.41 0.9997 0.0012
3.42 0.9997 0.0012
3.43 0.9997 0.0011
3.44 0.9997 0.0011
3.45 0.9997 0.0010
3.46 0.9997 0.0010
3.47 0.9998 0.0010
3.48 0.9998 0.0009
3.49 0.9998 0.0009
3.50 0.9998 0.0009
3.51 0.9998 0.0008
3.52 0.9998 0.0008
3.53 0.9998 0.0008
3.54 0.9998 0.0008
3.55 0.9998 0.0007
3.56 0.9998 0.0007
3.57 0.9998 0.0007
3.58 0.9998 0.0007
3.59 0.9998 0.0006
3.60 0.9998 0.0006
3.61 0.9998 0.0006
3.62 0.9999 0.0006
3.63 0.9999 0.0005
3.64 0.9999 0.0005
3.65 0.9999 0.0005
3.66 0.9999 0.0005
3.67 0.9999 0.0005
3.68 0.9999 0.0005
3.69 0.9999 0.0004
3.70 0.9999 0.0004
3.71 0.9999 0.0004
3.72 0.9999 0.0004
3.73 0.9999 0.0004
3.74 0.9999 0.0004
3.75 0.9999 0.0004
3.76 0.9999 0.0003
3.77 0.9999 0.0003
3.78 0.9999 0.0003
3.79 0.9999 0.0003
3.80 0.9999 0.0003
3.81 0.9999 0.0003
3.82 0.9999 0.0003
3.83 0.9999 0.0003
3.84 0.9999 0.0003
3.85 0.9999 0.0002
3.86 0.9999 0.0002
3.87 0.9999 0.0002
3.88 0.9999 0.0002
3.89 0.9999 0.0002
3.90 1.0000 0.0002
3.91 1.0000 0.0002
3.92 1.0000 0.0002
3.93 1.0000 0.0002
3.94 1.0000 0.0002
3.95 1.0000 0.0002
3.96 1.0000 0.0002
3.97 1.0000 0.0002
3.98 1.0000 0.0001
3.99 1.0000 0.0001

 

Standard Normal Distribution Graph (sa itaas ng zero)

 

 

 

Tingnan din

Advertising

 

 

PROBABILIDAD at ISTATISTIKA
°• CmtoInchesConvert.com •°