The sum of the x-variable and the y-variable is no more than 3. the y-variable is no less than the difference between the square of the x-variable and 1

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

answer:     true

step-by-step explanation:

0.85% : )

step-by-step explanation: