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Y, (a) Find the expectation E (X) of X. E (X) = (b) Find the variance Var(X) of X. Var(x) =

Y, (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
Section13.3: Special Probability Density Functions
Problem 54E
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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 0.15 0.20 0.10 0.10 0.10 0.35 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) =
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 0.15 0.20 0.10 0.10 0.10 0.35 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) =
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