Question

The number of pounds of food an elephant eats per day is normally distributed with a mean of 225 pounds and a standard deviation of 65 pounds. How many pounds of food would an elephant eat if it had a z-score of -2.3? (Write your answer as an exact value - don't round.)

Answer 1

The z-score of -2.3 corresponds to a value of 225 - (225 x 2.3) / 65 = 117 pounds of food.

Explanation: