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In statistics, a standard normal table, also called the unit normal table or Z table, [1] is a mathematical table for the values of Φ, the cumulative distribution function of the normal distribution.
Standard Normal Distribution Table. Provides area (probability) to le2 of z-values.
A Statistical Tables 134 Standard Normal Z Distribution Probabilities −3 −2 −1 0 1 2 3 Z Lower-tail probability: P(Z < z) z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0 ...
Standard Normal Cumulative Probability Table z 0 Cumulative probabilities for NEGATIVE z-values are shown in the following table: z .00 .01 .02 .03 .04 .05 .06 .07 ...
5 lis 2020 · The standard normal distribution, also called the z-distribution, is a special normal distribution where the mean is 0 and the standard deviation is 1. Any normal distribution can be standardized by converting its values into z scores.
Using two Z tables makes life easier such that based on whether you want the know the area from the mean for a positive value or a negative value, you can use the respective Z score table. If you want to know the area between the mean and a negative value you will use the first table (1.1) shown above which is the left-hand/negative Z-table.
The z-Table on this page indicates the area to the right of the vertical center-line of the z-curve (or standard normal curve) for different standard deviations. This table is very useful for finding probabilities when the event in question follows a normal distribution.
