If `P(X=x)=C((2)/(3))^x:x=1,2,3,4,..` is a probability mass function, the value of C is

If P(X=x)=C((2)/(3))^x;x=1,2,3,4,... is a mass function, the value of C is

If the function P (X=x) =kx,……x=1,2,3,4,5=0 ….otherwise is a probability mass function (p.m.f.) ,then : k=….

If the probability function of a random variable X is defined by P(X=k) = a((k+1)/(2^k)) for k= 0,1,2,3,4,5 then the probability that X takes a prime value is

Find k ,such that the function P(x)={{:(k({:(4),(x):}),,x=0","1","2","3","4,kgt0),(0,"otherwise."):} is a probability mass function (p.m.f.)

Let X be a random variable which assumes values x_(1),x_(2),x_(3),x_(4) such that 2P(X=x_(1))=3P(X=x_(2))=P(X=x_(3))=5P(X=x_(4)) Find the probability distribution of X .

The value of C for which P(X=k)=Ck^2 can serve as the probability function of a random varibale X that takes value 0,1,2,3,4, is

The value of C for which P(X=k) = Ck can serve the probability function of a random variable X that takes values 0,1,2,3,4 is

If a c.r.v. X has the probability density function f(x) = C(9-x^(2)), 0 lt x lt 3 = 0 , otherwise Then, the value of C is

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 X is the a random variable with probability mass function P(x) = kx , for x = 1,2,3 = 0 , otherwise then k = ……..