Statistics How To

Z-table (Right of Curve)

Watch the video to find out how to read a z-table, or scroll down for the table:

This z-table (normal distribution table) shows the area to the right hand side of the curve. Use these values to find the area between z=0 and any positive value.

z table

z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09
0.0 0.0000 0.0040 0.0080 0.0120 0.0160 0.0199 0.0239 0.0279 0.0319 0.0359
0.1 0.0398 0.0438 0.0478 0.0517 0.0557 0.0596 0.0636 0.0675 0.0714 0.0753
0.2 0.0793 0.0832 0.0871 0.0910 0.0948 0.0987 0.1026 0.1064 0.1103 0.1141
0.3 0.1179 0.1217 0.1255 0.1293 0.1331 0.1368 0.1406 0.1443 0.1480 0.1517
0.4 0.1554 0.1591 0.1628 0.1664 0.1700 0.1736 0.1772 0.1808 0.1844 0.1879
0.5 0.1915 0.1950 0.1985 0.2019 0.2054 0.2088 0.2123 0.2157 0.2190 0.2224
0.6 0.2257 0.2291 0.2324 0.2357 0.2389 0.2422 0.2454 0.2486 0.2517 0.2549
0.7 0.2580 0.2611 0.2642 0.2673 0.2704 0.2734 0.2764 0.2794 0.2823 0.2852
0.8 0.2881 0.2910 0.2939 0.2967 0.2995 0.3023 0.3051 0.3078 0.3106 0.3133
0.9 0.3159 0.3186 0.3212 0.3238 0.3264 0.3289 0.3315 0.3340 0.3365 0.3389
1.0 0.3413 0.3438 0.3461 0.3485 0.3508 0.3531 0.3554 0.3577 0.3599 0.3621
1.1 0.3643 0.3665 0.3686 0.3708 0.3729 0.3749 0.3770 0.3790 0.3810 0.3830
1.2 0.3849 0.3869 0.3888 0.3907 0.3925 0.3944 0.3962 0.3980 0.3997 0.4015
1.3 0.4032 0.4049 0.4066 0.4082 0.4099 0.4115 0.4131 0.4147 0.4162 0.4177
1.4 0.4192 0.4207 0.4222 0.4236 0.4251 0.4265 0.4279 0.4292 0.4306 0.4319
1.5 0.4332 0.4345 0.4357 0.4370 0.4382 0.4394 0.4406 0.4418 0.4429 0.4441
1.6 0.4452 0.4463 0.4474 0.4484 0.4495 0.4505 0.4515 0.4525 0.4535 0.4545
1.7 0.4554 0.4564 0.4573 0.4582 0.4591 0.4599 0.4608 0.4616 0.4625 0.4633
1.8 0.4641 0.4649 0.4656 0.4664 0.4671 0.4678 0.4686 0.4693 0.4699 0.4706
1.9 0.4713 0.4719 0.4726 0.4732 0.4738 0.4744 0.4750 0.4756 0.4761 0.4767
2.0 0.4772 0.4778 0.4783 0.4788 0.4793 0.4798 0.4803 0.4808 0.4812 0.4817
2.1 0.4821 0.4826 0.4830 0.4834 0.4838 0.4842 0.4846 0.4850 0.4854 0.4857
2.2 0.4861 0.4864 0.4868 0.4871 0.4875 0.4878 0.4881 0.4884 0.4887 0.4890
2.3 0.4893 0.4896 0.4898 0.4901 0.4904 0.4906 0.4909 0.4911 0.4913 0.4916
2.4 0.4918 0.4920 0.4922 0.4925 0.4927 0.4929 0.4931 0.4932 0.4934 0.4936
2.5 0.4938 0.4940 0.4941 0.4943 0.4945 0.4946 0.4948 0.4949 0.4951 0.4952
2.6 0.4953 0.4955 0.4956 0.4957 0.4959 0.4960 0.4961 0.4962 0.4963 0.4964
2.7 0.4965 0.4966 0.4967 0.4968 0.4969 0.4970 0.4971 0.4972 0.4973 0.4974
2.8 0.4974 0.4975 0.4976 0.4977 0.4977 0.4978 0.4979 0.4979 0.4980 0.4981
2.9 0.4981 0.4982 0.4982 0.4983 0.4984 0.4984 0

Z-table (Right of Curve) was last modified: November 7th, 2016 by Stephanie

17 thoughts on “Z-table (Right of Curve)

  1. parry krish

    Hi Khalid,

    How to calculate the minimum and max value using standard deviation in the Z table,

    Thanks in advance.
    Parry Krish

  2. Alberto

    on z chart finding .475 value using my book, it is not near 1.96. how can .475 value be translated into 1.96 using a regular z chart book?

    regards

  3. Andale

    Hi, Alberto,
    There are a few versions of z-tables. What value do you get? Do you have a screen shot? If you do, post it on our forum (statisticshowto.com/forums).

  4. Felicia Ruelas

    What do I do if I have a test and don’t have this table to help me figure out the curves…and I just have my calc?

  5. gregory lewis

    page 69 of cheating book on step 10 shows a negative number. How does the the area for -1.819 become .4706 on this table? Looking at the horizontal z- parameter 0.09 and matching it up w/ the vertical parameter 1.8 is not to clear. Please advise. TX.

  6. Andale

    Gregory, if you look at the .4706 entry in the center of the z-table (use CTRL F and search for it), you’ll see it corresponds to a z value of 1.8 (in the left column) and 0.09 in the row.

  7. Andale

    I would need a bit more information. Are you saying you have a z-value OF 5.025 and you need to find the area? If that’s the case, the area would be 1.

  8. JScott

    Need help with this problem. The question is “we would expect 80 of the children to have an IQ of ___ or lower. The mean is 90.11 and the standard deviation is 14.43. Step by step of how i obtain the answer please. Thank you

  9. Ary

    I am given this: Find the Z-score such that the area under the standard normal curve to the right is 0.32. I don’t know what to do. I try but I was told that the answer is 47 and I get a totally different answer. Please help me!

  10. Andale

    Hi, Ary,
    I would clarify the question from whomever gave it to you. Z-scores run from -4 to 4; it’s not possible to have a z-score of 47.

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