SOFTWARE COMPUTATION OF SKEWNESS AND KURTOSIS
a. Sometimes the scores on a test do not follow the normal distribution, although they usually do.
We sometimes find that students score low or high with very few in the middle. The distribution shown in Fig. 5-4 is such a distribution. This distribution is referred to as the U distribution. Find the mean, standard deviation, skewness, and kurtosis for the data using EXCEL.