Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.

Many scores are derived from the normal distribution, including percentile ranks (percentiles or quantiles), normal curve equivalents, stanines, z-scores, and T-scores.

This Normal Probability grapher draws a graph of the normal distribution. Type the mean µ and standard deviation σ, and give the event you want to graph

Oct 11, 2023 · A bell-shaped curve, also known as a normal distribution or Gaussian distribution, is a symmetrical probability distribution in statistics. It represents a graph where the data clusters around …

Dec 27, 2025 · Normal distribution is a continuous probability distribution that is symmetric about the mean, depicting that data near the mean are more frequent in occurrence than data far from the …

You can explore the concept of the standard normal curve and the numbers in the z-Table using the following applet. The (colored) graph can have any mean, and any standard deviation. The gray …

Most data isn't perfectly normal, but the normal distribution still helps us make sense of it! You can see a normal distribution being created by random chance! It is called the Quincunx and it is an …

The normal distribution, also called the Gaussian distribution, is a probability distribution commonly used to model phenomena such as physical characteristics (e.g. height, weight, etc.) and test scores. …

Jan 19, 2026 · The graph of the normal distribution is characterized by two parameters: the mean, or average, which is the maximum of the graph and about which the graph is always symmetric; and …

Explore interactively the properties of the normal distribution curve by changing the mean and standard deviation.