marf9911 marf9911

25-02-2024
Mathematics

contestada

consider the following discrete random distribution:
x P(x)
0 .15
1 .20
2 .30
3 .20
4 .15

what is the variance of the distribution?
a. 1.0
b. 1.2
c. 2.0
d. 1.5
e. 1.6

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