2. Calculate the mean, standard deviation, skewness, and kurtosis of returns. Plot a histogram of the returns with the normal distribution imposed as well. (Excel hints: You can either use the Histogram tool under Data Analysis, or you can use the functions AVERAGE, STDEV, SKEW, KURT, and the array function FREQUENCY, as well as the NORMDIST function.

Note that KURT computes excess kurtosis.)