Question

A left-skewed distribution has a mean of 4.99 and a standard deviation of 3.13. Use the theorem to find the proportion of observations you would expect to find within two standard deviations from the mean: (A) between −1. 86 and 8. 12 (B) between −1. 86 and 11. 25 (C)between −1. 27 and 8. 12 (D) between −1. 27 and 11. 25

Answer 1

Answer:

The formula given in most textbooks is Skew = 3 * (Mean – Median) / Standard Deviation. This is known as an alternative Pearson Mode Skewness. You could calculate skew by hand.