Z Score Table (Standard Normal Table) | z value table
Statistics[1]StandardNormalTableHowtoUsetheZ-TableByDr.SaulMcLeod[2],publishedMay30,2019Whatdoesthezscoretabletellyou?Az-table,alsocalledthestandardnormaltable,isamathematicaltablethatallowsustoknowthepercentageofvaluesbelow(totheleft)az-scoreinastandardnormaldistribution(SND). Figure1.Astandardnormaldistribution(SND).Az-score,alsoknownasastandardscore,indicatesthenumberofstandarddeviationsarawscorelaysaboveorbelowthemean.Whenthemeanofthez-scoreiscalculateditisalways0,andthestandarddeviatio...
Statistics[1]Standard Normal Table
How to Use the Z-TableBy Dr. Saul McLeod[2], published May 30, 2019
What does the z score table tell you?
A z-table, also called the standard normal table, is a mathematical table that allows us to know the percentage of values below (to the left) a z-score in a standard normal distribution (SND).
Figure 1. A standard normal distribution (SND).
A z-score, also known as a standard score, indicates the number of standard deviations a raw score lays above or below the mean. When the mean of the z-score is calculated it is always 0, and the standard deviation (variance) is always in increments of 1.
How to use a z-table to find the area to the left of a positive z-score
A z-score table shows the percentage of values (usually a decimal figure) to the left of a given z-score on a standard normal distribution.
For example, imagine our Z-score value is 1.09. Firs...