By changing the values you can see how the parameters for the Normal Distribution affect the shape of the graph. Remember, the area under the curve represents the probability. Explore …

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 …

Jan 20, 2025 · Generate customizable bell curve graphs for normal distributions. Free tool with mean, standard deviation, and shaded area options.

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 …

Upload a CSV file with numbers in the first column, and the tool will plot your data's distribution curve and calculate its mean and standard deviation.

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

Owing largely to the central limit theorem, the normal distributions is an appropriate approximation even when the underlying distribution is known to be not normal.

But in many cases the data tends to be around a central value, with no bias left or right, and it gets close to a "Normal Distribution" like this: The blue curve is a Normal Distribution.

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