A full-sized cow needs about 100 square feet of pasture to graze on each day. Assume an average-sized classroom is about 600 square feet. How many classrooms worth of pasture would be needed to keep a cow alive for a year?

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

stops on an even number.

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.