a) Find the expectation E (X) of X. E (x) = | %3D (b) Find the variance Var(X) of X. Var (x) = 0
a) Find the expectation E (X) of X. E (x) = | %3D (b) Find the variance Var(X) of X. Var (x) = 0
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 24CR
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Question
Transcribed Image Text:Let X be a random variable with the following probability distribution.
Value x of X PX=x)
-10
0.15
0.
0.20
10
0.10
20
0.15
30
0.40
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) = D
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