Suppose X is a discrete random variable whose probability distribution function f(x) is given by the following table. Find the expected value, E(X), of X. Round to 4 decimal places if needed. x f(x) -2 -1 0 1 0.1 0.2 0.3 0.4
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- 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) 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 S
- 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) 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 GIf 'X' is a continuous random variable, then the expected value is given by O a. SXP(X) O b. P(X) O C. No value such as expected value d. [x P(x) م
- I need the answer as soon as possibleLet 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) = 0The probability distribution function of a random variable X is 4. P(X =x)=Dk for x=0,1, 2,3,4 where k is a constant. Determine (a) the value of k. Hence, find P(0Let 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)=?Let X be a random variable with the following probability distribution.Calculate the following Find the expectation E (X) of XE (X) =? 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 3 4 5 6 7 0.05 0.35 0.25 0.05 0.30 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