Z-scores

Definition

Z-scores are a way to standardize data by measuring how many standard deviations an observation is from the mean. They allow us to compare values from different distributions.

Related terms

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

Normal Distribution: A bell-shaped distribution that is symmetric and characterized by its mean and standard deviation.

Percentile Rank: The percentage of values in a dataset that are below a particular value.