Normal Distribution

Definition

A normal distribution, also known as a bell curve, is a statistical concept that refers to a type of continuous probability distribution for a real-valued random variable. In this distribution, most of the data falls near the mean (average), with frequencies decreasing away from the mean.

Related terms

Standard Deviation:

This measures how spread out numbers are from their average value. It's like measuring how steep or flat our 'score mountain' is.

Mean:

This is simply the average value in any set of data. It's like finding the highest point or peak of our 'score mountain'.

Z-Score: This measures how many standard deviations an element is from the mean. It's like determining how far off someone's score was from the average score.