Biology Forums - Study Force

Provide an appropriate response.

A manager asked her employees how many times they had given blood in the last year.  The results of the survey are given below.  The random variable x represents the number of times a person gave blood and P(x) represents the probability of selecting an employee who had given blood that percent of the time.  What is the mean number of times a person gave blood based on this survey?

x	0	1	2	3	4	5	6
P(x)	0.30	0.25	0.20	0.12	0.07	0.04	0.02

▸ 3.0

▸ 0.14

▸ 2.0

▸ 1.6

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