If the probability mass function of a discrete random variable X is
`P(x)=C/(x^3), x=1,2,3`
=0, otherwise
Then `E(X)=`

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

The probability function of a random variable X is given by p(x)=(1)/(3) , if x = -1, 0, 1 =0, otherwise. Find the distribution function of X.

The probability function of a random variable X is given by p(x)=(1)/(3) , if x = -1, 0, 1 =0, otherwise. Find the distribution function of X.

Let pmf of a random variable X is P(x)=(3-x)/10 ,x=-1,0,1,2.=0,otherwise.Then E(x) is…

Let the p.m.f. ( probability mass function ) of random variable x be P(x) = (4/x)(5/9)^(x)(4/x)^(4-x), x = 0, 1, 2, 3, 4 = 0 , otherwise Find E(x) and Var.(x)

The probability distrubtion of a discrete random variable X is as below : Find (P X le 4)

If X is a discrete random variable P(X gta) is equal to

The probability distribution of a discrete random variable x is given by The value 6E(X^(2))-Var(x) is

Define the probability function of a discrete random variable x .state the conditions satisfied by it

The pobability distribution of a discrete random variable X is given below. If E(X^(2))=Sigma x^(2)P(X=x) , then 6E(X^(2))-Var(X)= {:(X=x,-1,0,1,2,),(P(X=x),1/3,1/6,1/6,1/3,):}