Calculate the standard deviation in a distribution with a me

Calculate the standard deviation in a distribution with a median of 55, mean of 62,and skewness equal to 0.785

A.6.75

B.20.75

C.24.75

D.26.75

E.30.75       show work pls

Solution

The coefficient of skewness is = 3( Mean - Median) / sd

3 MEan - 3 Median = Sk * sd

3*62- 3 * 55 = 0.785*S.d

21/0.785 = s.d = 26.75