Let X be a random variable with the following probability distribution. Value x of X P(X=x) 0.05 0.50 0.20 0.20 0.05 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E(X ) of X. E(X)-] 5 ? (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) 0.05 0.50 0.20 0.20 0.05 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E(X ) of X. E(X)-] 5 ? (b) Find the variance Var(X) of X. Var (x) = []
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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![Let X be a random variable with the following probability distribution.
Value x of X P(X=x)
0.05
1
*0.50
2
0.20
3.
0.20
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) = []
Check
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Transcribed Image Text:Let X be a random variable with the following probability distribution.
Value x of X P(X=x)
0.05
1
*0.50
2
0.20
3.
0.20
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) = []
Check
acer
->
esc
%23
%24
6.
!
@
4
2
1
r
e
tab
f
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