A Box-Cox Power Transformation allows you to transform data to match a normal distribution. It is not a guarantee of ...

Some people believe all data collected and used for analysis must be distributed normally. But normal distribution does not happen as often as people think, and it is not a main objective.

Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than ...

This wonderfully animated applet helps users understand the sample mean's properties, using simulated fish length data which is assumed to come from a normal distribution. Users can choose the sample ...

It is used to understand patterns, trends, and variation in data. A bell curve is a common type of distribution. Also known as the normal distribution, the term "bell curve" originates from the ...

Statisticians frequently assume that data follow a normal distribution when developing statistical methods and performing practical data analysis. In most introductory statistics textbooks, the ...

this distribution will be nearly normal even if the sample data are non-normal. Identify the conditions when the CLT can be used for inference involving a sample mean: The sample size is sufficiently ...