Let X be a random variable with the following probability distribution. Value X of X P(X=x) 0 10 20 30 40 50 0.30 0.10 0.15 0.05 0.05 0.35 Complete the following. (If necessary, consult a list of formulas.)

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Author:Amos Gilat
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Let X be a random variable with the following probability distribution.
X
Value of X P(X=x)
Check
0
71
10
20
30
40
50
0.30
0.10
0.15
0.05
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) = 0
0.35
3
31
Q
X
Transcribed Image Text:Let X be a random variable with the following probability distribution. X Value of X P(X=x) Check 0 71 10 20 30 40 50 0.30 0.10 0.15 0.05 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) = 0 0.35 3 31 Q X
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