If the random variable X takes the values `x_1,x_2,x_3….,x_(10)` with probablilities P `(X=x_i)=ki` , then the value of k is equal to

IF the random variable X takes the values x_1,x_2,x_3………….x_10 with probabilities P(X=xi)=ki,then the value of k is equal to a) 1/10 b) 1/4 c) 1/55 d) 7/12

Random variable X takes integer values from 1 to n with equal probabilities then E(X) = ………..

A random variable X takes the values 0,1,2,3,..., with prbability P(X=x)=k(x+1)((1)/(5))^x , where k is a constant, then P(X=0) is.

A random variable X takes the values 0,1,2,3,..., with probability P(X=x)=k(x+1)((1)/(5))^x , where k is a constant, then P(X=0) is.

A random variable X takes the values 0,1,2,3,..., with prbability P(X=x)=k(x+1)((1)/(5))^x , where k is a constant, then P(X=0) is.

If a random variable "X" takes values ((-1)^(k)2^(k))/k, k=1,2,3,... with probabilities P(X=k)=(1)/(2^(k)) , then E(X)

If X is discrete random variable takes the values x_1, x_2, x_3 , ... x_n then sum_(i=1) P(x_i) = ........

If X be a random variable taking values x_(1),x_(2),x_(3),….,x_(n) with probabilities P_(1),P_(2),P_(3) ,….. P_(n) , respectively. Then, Var (x) is equal to …….. .

If X be a random variable taking values x_(1),x_(2),x_(3),….,x_(n) with probabilities P_(1),P_(2),P_(3) ,….. P_(n) , respectively. Then, Var (x) is equal to …….. .