Originally Posted by

**dangitnghia** Not sure how to approach this question.

I've calculated the following already, sample standard deviation of the data is 1.449931 and the sample mean is 2.366667.

any help is appreciated.

The empirical rule states that if a distribution is approximately bell shaped, then approximately 95% of the

samples will fall between two standard deviations of the mean.

Calculate the proportion of the sample that is within two standard deviations of the mean and comment on

its closeness to the 95% estimate from the empirical rule.