Pearson’s Skewness Coefficient is given by: (A) Mean-Mode/SD, (B) Mode-Mean/SD, (C) SD/Mean-Median, (D) SD/Median-Mean
Answer is C. • Measures of skewness:
– Pearson’s mode or First Skewness coefficient = (Mean – Mode)/SD
– Pearson’s median or Second Skewness coefficient = 3(Mean – Median)/SD
– Quartile skewness = (Q3 – 2Q2 + Q1)/Q3 – Q1