Kizspy | Question: 14
(Choose 1 answer)
The produce manager at a food store was interested in determining how many apples a person buys when they buy apples. He asked the cashiers over a weekend to count how many apples a person bought when they bought apples and record this number for analysis at a later time. The data is given in the table. The random variable x represents the number of apples purchased and P(x) represents the probability that a customer will buy x apples. Determine the variance of the number of apples purchased by a customer.
Α. 1.95
Β. 0.56
C. 3.57
D. 3.97
E. None of the other choices is correct
X
1
2
3
4
5
6
7
P(X) 0.05 0.19 0.20 0.25 0.12 0.10 0
8
0.08
9 10
0 0.01
