Asked by Ember Lovet

The number of golf balls ordered by customers of a pro shop has the following probability distribution. Find the mean.

x|P(x)
3|0.14
6|0.05
9|0.36
12|0.35
15|0.10

A. 7.86
B. 9
C. 6.99
D. 9.66
Answered by Ember Lovet
Sorry forgot to say I think its C. 6.99 if it isn't can someone explain how to do this problem?
Answered by Reiny
I did:
3(.14) + 6(.05) + 9(.36) + 12(.35) + 15(.1)
and got 9.66

How did you get 6.99 ??
Answered by Ember Lovet
I asked my brother for help and he said 6.99
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