Solve the Problem $$\mathrm { I } = \frac { 3 ( \overline { \mathrm { x } } - \text { median } ) } { \mathrm { s } }$$

Multiple Choice

Solve the problem.
-Skewness can be measured by Pearson's index of skewness: $$\mathrm { I } = \frac { 3 ( \overline { \mathrm { x } } - \text { median } ) } { \mathrm { s } }$$
If $\mathrm { I } \geq 1.00$ or $\mathrm { I } \leq - 1.00$ , the data can be considered significantly skewed. Find Pearson's index of skewness for the test scores below.
$\begin{array} { l l l l l l } 68 & 80 & 32 & 85 & 72 & 42 \\ 75 & 91 & 84 & 73 & 101 & \end{array}$

A) $- 0.31$
B) $0.30$
C) $- 0.25$
D) $- 0.30$