Lpryor8419 Lpryor8419

20-03-2024
Mathematics

contestada

Consider the probability distribution below.

x f(x)
30 0.45
40 0.05
50 0.15
60 0.35

the expected value is 44. find the variance of x.
a. 13.56
b. 22
c. 184
d. 484

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