For the following probability distribution `X -> 1,2,3,4, and P(x) -> 1/10,1/5,3/10,2/5` then `E(X^2)` is equal to

For the following probability distribution: X :\ 1\ 2\ \ 3\ 4 P(X):1/10\ 1/5\ 3/10\ 2/5 The value of E(X^2) is 3 b. 5 c. 7 d. 10

For the following probability distribution: X:1234P(X):1/101/53/102/5 The value of E(X^(2)) is 3 b.5c.7d.10

A random variable has the following probability distribution: X=x_i : 0 1 2 3 4 5 6 7 P(X=x_i):0 2p 2 p 3p p^2 2p^2 7p^2 2p The value of p is a. 1/10 b. -1 c. -1/10 d. 1/5

A random varibale X has the following probability distribution. {:(X:,1,2,3,4,5),(P(X):,0,0.1,0.2,0.3,0.4):} Find the mean.

Find the mean of the following probability distribution: X=x_i :\ \ 1 \ \ 2 \ \ 3 \ P(X=x_i):1/4 \ \ 1/8 \ \ 5/8 \ \ .

A random variable X has the following probability distribution: [[X=x,0,1,2,3], [P(X=x),(1)/(8),(1)/(2),(1)/(4),k]]

A random variable has the following probability distribution: X=x_i :\ \ 0 \ \ 1 \ \ 2 \ \ 3 \ \ 4 \ \ 5 \ \ 6 \ \ 7 P(X=x_i):0 \ \ 2p \ \ 2 p\ \ 3p\ \ p^2\ \ 2p^2 \ \ 7p^2 \ \ 2p The value of p is a. 1/10 b. -1 c. -1/10 d. 1/5

Determine which of the following can be probability distributions of a random variable X : X :\ 0\ 1\ 2\ 3\ \ 4 P(X):\ 0. 1\ \ 0. 5\ 0. 2\ \ -0. 1\ \ 0. 3

The probability distribution of the random variables X is given by {:(X,1,2,3,4),(P(X=x),1//8,1//2,1//8,1//4):} Then the value of V(X) is equal to