Question

if the sample mean of a data set is 15 and sample standard deviation is 9 what percent of data would you expect to fall between 6 and 24 assuming that the data distribution is fairly symmetric?​

Answer 1

The normal distribution is simply a distribution with a certain shape. It is normal because many things have this same shape. The normal distribution is the bell-shaped distributionthat describes how so many natural, machine-made, or human performance outcomes are distributed.