Click on the following links. Please note these will open in a new window.

This website provides a quick insight into how the mean and standard deviation change after multiplying by a constant.

This website provides a presentation about adding and multiplying constants to a set of data as well as finding z-scores.

This website demonstrates an application of z-scores and how they can be used to plot and compare data.

This website discusses the distribution of sample means and the central limit theorem.

This website gives examples of mean and variance of sample mean.