Question: Let X be a random variable with the following probability distribution: Value x of X P = X x 400.10500.15600.10700.30800.20900.15 Find the expectation E X

LetX

be a random variable with the following probability distribution:

Valuex

ofX

P

=

X

x

400.10500.15600.10700.30800.20900.15

Find the expectation

E

X

and varianceVar

X

ofX

. (If necessary, consult alist of formulas.)

=

E

x

0.3

=

Var

X

1

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