Question: Find the mathematical expectation of the random variable (X) with density function (f(x)=c ln x, 1 leq) (X leq 3), where (c) is a constant

Find the mathematical expectation of the random variable $X$ with density function $f(x)=c \ln x, 1 \leq$ $X \leq 3$, where $c$ is a constant to be determined. Also evaluate the mean square value, the variance, and the coefficient of variation.

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