Question

The weights of 12-year old boys are normally distributed with a mean of 89 lbs. If 68% of 12 year old boys are between the weights of 82.7 lbs and 95.3 lbs, what is the standard deviation?

A
34
B
6.3
C
3.5
D
12.6

Answer 1

This is the answer B. This is because if you want to be treated the way you do treat people.