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8.5.4
Prob that you get a green ball is 3 out of 8, as there are 3 green balls out of 8 balls.
P(x=0) = 3C0*(3/8)^0 *(5/8)^3 = .2441
P(x=1) = 3C1*(3/8)^1 *(5/8)^2 = 0.4395
P(x=2) = 3C2*(3/8)^2 *(5/8)^1 = 0.2637
P(x=3) = 3C3*(3/8)^3 *(5/8)^0 = 0.0527
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