Body mass index, or BMI, of 20-year-old men is normally distributed with a mean of 23 and a standard deviation of 3.8. Twenty-year-old Allan’s BMI has az-score of1.25. What is Allan’s BMI?
( x - 23)
_______ = 1.25
3.8
x - 23 = 1.25 (3.8)
x - 23 = 4.75
x = 4.75 + 23 = 27.75 = Allan's BMI
+16 
