A football team lost 5 yards on one play and gained 12 yards on the next play. Write a sum of integers to find the overall change in field position. Explain your answer.

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

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step-by-step explanation:

step-by-step explanation:

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