Business Statistics

Chapter 4 | Measures of Dispersion 137

A positive sign of coefcient of skewness indicates that the distribution is positively skewed. Greater

the coefcient of skewness, the more skewed the distribution is.

A distribution can have a single mode or multiple modes. So, it will be convenient to dene this

relationship (for coefcient of skewness) with median. We have already discussed in Chapter 3 that

for a moderately asymmetrical frequency distribution, the empirical relationship between mean, me-

dian, and mode is given by Karl Pearson and can be dened as

Mode = 3Median – 2Mean

When we substitute this mode value in the above described coefcient ...