Find Karl Pearson’* coefficient of skewness for the following data.
| CI | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 | | f | 10 | 40 | 20 | 0 | 10 | 40 | 16 | 14 |
In the frequency distribution, frequencies not symmetrical i.e. one of the frequency in the middle class interval is zero. So use the skewness coefficient. Using Karl Pearson’* coefficient
The distribution is negatively skewed.
