Answer:
The standard deviations is [tex]\frac{-5}{3}[/tex]
Step-by-step explanation:"
Given mean female height = 64 inches and standard devaiton = 3 inches and 69 inches tall is Sally.
We know the distance of a data point from:
Z =[tex]\frac{64-69}{3}[/tex] = [tex]\frac{-5}{3}[/tex]
So the standard deviations is [tex]\frac{-5}{3}[/tex]