A manager at a local company asked his 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 andP(x) represents the probability of selecting an employee who had given blood that many times. What is the standard deviation for the number of times a person gave blood based on thissurvey? Round to the nearest hundredth.

x

0

1

2

3

4

5

6

P(x)

0.30

0.25

0.20

0.12

0.07

0.04

0.02