A Z Score, also called as the Standard Score, is a measurement of how many standard deviations below or above the population mean a raw score is. Meaning in simple terms, it is Z Score that gives you an idea of a value's relationship to the mean and how far from the mean a data point is. A z-table, also known as a standard normal table or unit normal table, is a table that consists of standardized values that are used to determine the probability that a given statistic is below, above, or between the standard normal distribution. A z-score of 0 indicates that the given point is identical to the mean. A z -score is a standardized version of a raw score ( x ) that gives information about the relative location of that score within its distribution. 4.3: Z-scores and the Area under the Curve 4.E: Z-scores and the Standard Normal Distribution (Exercises) oC7U.