Question: The discrete random quantity X has the following probability mass function: 1 .1 4 p(x) .2 .3 .4 1- Verify that p(x) is a

The discrete random quantity X has the following probability mass function: 1

The discrete random quantity X has the following probability mass function: 1 .1 4 p(x) .2 .3 .4 1- Verify that p(x) is a valid pmf. And plot pmf graph. 2- Sketch the cumulative distribution function F (x). 3- Find the population mean of X. 4- Find the population variance of X 5- Find the population standard deviation of X

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