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Let be a random variable with the following probability distribution: Value X ofX PX=x -30 .30 -20 .35 -10 .20 0 .15Find the expectation x

Let be a random variable with the following probability distribution:

Value X ofX PX=x

-30 .30

-20 .35

-10 .20

0 .15Find the expectation x and variance x of x.

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