Suppose that f(x) given below represents a probability mass function

Find (i) the value of c (ii) Mean and variance.

A random varibale x has the following probability mass function Find the value of k

A random variable X has the following probability mass function.Find the value of K

A random variable has the following distribution i. Does it represent a probability function? ii. If yes, find its mean and variance.

A random variable X has the following probability mass function Find k

A random variable X has the following probability mass function Find (i) the value of k (ii) P(2 lt= X lt 5) " (iii)" P(3 lt X )

If the p.m (probability mass function ) f(x) of a random varibale X is Find P(X le 3)

If the p.m (probability mass function ) f(x) of a random varibale X is Find P(X gt2)

For the random variable X with the given probability mass function as below, find the mean and variance. f(x)={(4-x)/6 " "x=1,2,3