Question

Question 5.5. Suppose the velocities of golf swings for amateur golfers are normally distributed with a mean of 95 mph and a standard deviation of 3.9 mph.

What is the difference in velocities between a golfer whose z-score is 0 and another golfer whose z-score is –1?
(Points : 1)
2.9 mph
1.95 mph
7.8 mph
3.9 mph
My anwser is D? is it the right anwser?

Answer 1

(^-^)

Answer 2

Why do you think D?

Answer 3

feels right also i worked the problem which is to much typing for me thank you.

Answer 4

Well okay then.