Discover what a log-normal distribution is, its financial applications, and how to calculate it, including using Excel for ...

In the graph below, a normal distribution is shaped like a bell, hence its nickname the bell curve, with the middle of the curve representing the mean.

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 ...

For more information about the SPEC statement, see . The agreement between the empirical and the normal distribution functions in Output 2.1.1 is evidence that the normal distribution is an ...

The common assumptions made when doing a t-test include those regarding the scale of measurement, random sampling, normality of data distribution, adequacy of sample size, and equality of variance ...