a. Find the moment coefficient of skewness, a3, for the distribution (a) without and (b) with…

a. Find the moment coefficient of skewness, a3, for the distribution (a) without and (b) with Sheppard’s corrections.

b. Find the moment coefficient of skewness, a3, for the distribution.

c. The second moments about the mean of two distributions are 9 and 16, while the third moments about the mean are -8.1 and -12.8, respectively. Which distribution is more skewed to the left?

d. Find Pearson’s (a) first and (b) second coefficients of skewness for the distribution ,account for the difference.

e. Find the (a) quartile and (b) percentile coefficients of skewness for the distribution. Compare your results with those explain.