Ask someone to tell you how long their commute is, and they can probably provide an average number without much thought. But ...

They have the same average but mean something very different when you are planning your rent or mortgage payments. Situations ...

suppose that the manufacturing process described in the previous example produces engines whose weights are normally distributed with a mean of 1250 and a standard deviation of 12. The following ...

These methods are illustrated by estimating the mean of a random sample from a normal distribution with mean and standard deviation . The simplicity of the example makes it easy to compare the results ...

An example involving zoo keepers and some very dangerous animals demonstrates that even with the same mean, median and mode, samples can differ greatly. How to calculate standard deviation using ...