MATLAB: An Introduction with Applications
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Transcribed Image Text:Let X be a random variable with the following probability distribution.
Value x of X
10
20
30
40
P (X=x)
0.30
0.40
0.25
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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