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 ...

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.

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

Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee, and has a degree in accounting and finance from DePaul University. Vikki Velasquez is a researcher and writer who has ...

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 ...

One of the first data sets that I looked at when I was ... followed the bell-shaped curve that is often described as a "normal distribution." This, I was told, was not normal at all; indeed ...

Anyone familiar with basic statistics is familiar with the concept of a bell curve. A bell curve is a visual representation of normal data distribution, in which the median represents the highest ...

The data still only exist at the marker points ... For everything we'll be doing from now on, we'll be using the normal distribution, so we might as well insert it into Equation 36 explicitly, to get: ...