Question: Let X be a random variable with the following probability distribution: Value x of X P = X x 30.4040.0550.1060.0570.40 Find the expectation E X

LetX

be a random variable with the following probability distribution:

Valuex

ofX

P

=

X

x

30.4040.0550.1060.0570.40

Find the expectation

E

X

and varianceVar

X

ofX

. (If necessary, consult alist of formulas.)

=

E

x

=

Var

X

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