For the given probability density function, over the given interval, find the mean, the variance, and the standard deviation.f(x) = , [6, 13]

A. ? = 3.45; ?2 = 4.080; ? = 2.02
B. ? = 3.50; ?2 = 4.080; ? = 2.02
C. ? = 9.50; ?2 = 2.993; ? = 1.73
D. ? = 9.50; ?2 = 4.083; ? = 2.02


Answer: D

Mathematics

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