Find the expected value of a random variable x having the following probability distribution. x (-5,-1,0,1,5,8) probability (.12, .16, .28, .22, .12, .1)

The expected value is 0.86.

Step-by-step explanation:

To find the expected value, multiply each x value by the corresponding probability, and then sum up these products:

(-5)(0.12) + (-1)(0.16) + (0)(0.28) + 1(0.22) + 5(0.12) + 8(0.10).

This comes out to

-0.60 - 0.16 + 0 + 0.22 + 0.60 + 0.8 = 0.86

1st part is 64,000,000

2nd part 500,000

step-by-step explanation:

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