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
3-4
the answer is 3-4 because both 45 and 60 has a multiple of 15.
45/3=15
60/4=15
therefore the odds against selecting a red is 4-3