# Beginner’s Guide to Normal Distribution

## Understanding the Science behind a Bell Curve!

A Normal Distribution is also called **“Gaussian Distribution” **or more commonly known as **“Bell Curve”** as the probability distribution function plot of a normal distribution looks very like 🔔 bell-shaped.

A Normal Distribution is a *univariate probability distribution**, *which means it is a distribution for only ** one **random variable.

**Note**: Multivariate normal distributions do exist but in this article, we would be talking about only univariate normal distribution.

The normal distribution is an arrangement of data points in which most values form a cluster in the middle of the range and the rest taper off symmetrically toward either extreme ends.

In probability theory, a **normal** **distribution** is a type of continuous probability distribution for a real-valued random variable (say X). The general form of its probability density function is

Normal distributions are very important in ** statistics** and often they are very naturally occurring. One of the main reasons for the popularity of the Normal Distribution curve is that it occurs very commonly…