The Pearson's First Coefficient of skewness is given by the formula below:

Where

= Mean, Mo = Mode and s = Standard Deviation

Given the data set: 84 38 76 70 84 59 82 76 74 52 76 85 76 91 62 54 72 76.

**Mode: 76**

**Mean: 71.5**

**To calculate Standard Deviation, follow the steps below;**

**Standard Deviation:** **13.23**

Substitute all values into the Pearson's Formula;

(71.5 - 76) / 13.23 = - 4.5/13.23 = **- 0.34**

**Comment: **The direction of skewness is given by the sign. A negative value implies that the distribution is negatively skewed.

Please leave a comment below if you found this explanation helpful. Happy learning!