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A random variable X has the following pdf f(x)=2x^-3, if x ≥1 0, Otherwise (a) Find...

A random variable X has the following pdf
f(x)=2x^-3, if x ≥1

0, Otherwise
(a) Find the cdf of X (b) Give a formula for the pth quantile of X and use it to find the median of X. (c) Find the mean and variance of X

Math   Statistics-And-Probability   
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Answer #1

here variance is undefined. I didn't check with characteristics function. You check it. And follow the entire method.

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