Z-Score

Definition

A z-score is a measure of how many standard deviations an individual data point is away from the mean of a distribution. It helps to determine the relative position of a data point within a dataset.

Related terms

Standard Deviation: A measure of how spread out the values in a dataset are around the mean.

Normal Distribution: A symmetric bell-shaped curve that represents many natural phenomena and is commonly used in statistics.

Outlier: An extreme value that significantly differs from other values in a dataset.