Let X be a random variable with the following probability distribution. Value X of X P(X=x) 30 Continue 40 50 60 70 80 0.15 0.25 0.20 0.10 0.15 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = (b) Find the variance Var(X) of X. Var(x) = 0 O M EX

Let X be a random variable with the following probability distribution. Value x of X 10 20 30 40 P (X=x) 0.30 0.40 0.25 0.05 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (x) = 0 (b) Find the variance Var(x) of X. Var(x) = |

Let X be a random variable with the following probability distribution. Value  x  of  X P(X=x) 0 0.25 10 0.20 20 0.10 30 0.35 40 0.10 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation  E (X) of X .   E(X)=   (b) Find the variance Var (X)of X.   Var (X)=

Let X be a random variable with the following probability distribution.

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 10 20 30 40 50 0.10 0.30 0.20 0.25 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) =

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 40 0.05 50 0.55 60 0.10 70 0.30 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (x) = [] (b) Find the variance Var(X) of X. Var (x) = ] Save For Later Check 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use I F atv 17 17 esc %23 24 6 7. 6o

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 2 0.05 3 0.05 4 0.05 5 0.85 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E(X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = ☐ Check B X G

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 3 4 5 5.0 6 0.10 0.05 0.40 0.45 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = 0

Let X be a random variable with the following probability distribution. Value x of X P (X=x) 20 0.10 30 0.05 40 0.70 50 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (x) = [] (b) Find the variance Var(X) of X. Var(X) = []

Let Xbe a random variable with the following probability distribution. Question table Value   of X        P( X=x)   0 0.05 10 0.40 20 0.20 30 0.10 40 0.25 A. Find the expectation E(X) of (X) E(X)=? B. Find the variance VAR(X) of (X) VAR(X)=?