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Let X be a random variable with the following probability distributio Value x of X 20 30 40 50 60 70 P(X=x) 0.30 0.10 0.05 0.40 0.10 0.05 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 distributio Value x of X 20 30 40 50 60 70 P(X=x) 0.30 0.10 0.05 0.40 0.10 0.05 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) =

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 8CR
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Let X be a random variable with the following probability distribution Value x of X P(X=x) 20 30 40 50 60 70 0.30 0.10 0.05 0.40 0.10 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) =
Transcribed Image Text:Let X be a random variable with the following probability distribution Value x of X P(X=x) 20 30 40 50 60 70 0.30 0.10 0.05 0.40 0.10 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) =
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