Find the expected value of the probability mass function below. P(X) 0.15 0.32 0.37 0.16 0.85 O 1 1.54 O 1.69
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- 18A random variable X has the following probability function: e Textbook and Media for Lager X Find P(X=1 or X= 2). Round your answer to two decimal places. · e 1 p(x) 0.12 0.25 0.20 0.43 2 3 4 SLet 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. 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 SLet 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) =X 1. P(X) 0.17 0.46 0.16 0.16 0.05 Find the probability of "at least 1". Round to TWO decimal places. 0.27 O 0.46 0.37 O 0.83
- Given the random variable X with distribution. x P(X = x) 0 0.15 0.5 0.24 1 0.09 1.5 0.34 2.0 0.18 Calculate the following: P(0 < X ≤ 1.5) If pX (x) is the probability mass function for X, what is pX (1) If FX (x) is the cumulative probability distribution for X, what is FX (1.5)0.15 0.4 0.25 A B (i) Calculate the conditional probability that A occurs, given that B has occured. (ii) Calculate P(A'/B)Find the expected value E(X) of a random variable X having the following probability distribution. (Enter your answer to two decimal places.) E(X) = %D х -3 13 17 P(X = x) 0.11 0.09 0.17 0.11 0.15 0.37
- 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) = 0Calculate the expected value of X, E(X), for the given probability distribution. 1 3 P(X = x) 0.1 0.2 0.2 0.5Calculate the expected value of X, E(X), for the given probability distribution. 1 2 4 P(X = x) 0.2 0.1 0.6 0.1 E(X) %D
