(4) Find , and o2 for the random variable X that has the probability density f(x) = 1 x In 3 0 : 1

A First Course in Probability (10th Edition)
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(4) Find, and o2 for the random variable X that has the
probability density
1
f(x) = x In 3
0
: 1 < x < 3
: elsewhere
(5) If the probability density of X is given by
(2x-3
0
f(x) =
: x > 1
: elsewhere
check whether its mean and its variance exist.
Transcribed Image Text:(4) Find, and o2 for the random variable X that has the probability density 1 f(x) = x In 3 0 : 1 < x < 3 : elsewhere (5) If the probability density of X is given by (2x-3 0 f(x) = : x > 1 : elsewhere check whether its mean and its variance exist.
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