SOLUTION: Mary selects three marbles from a jar containing 8 blue marbles and 2 yellow marbles. If the marble chosen after each selection is replaced before the next selection, find the prob
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Question 367572: Mary selects three marbles from a jar containing 8 blue marbles and 2 yellow marbles. If the marble chosen after each selection is replaced before the next selection, find the probability distribution for the number of blue marbles drawn.
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
Let b=.8 and y=.2
(b+y)^3
b^3=.512 all blue
3b^2y=.384 2 bl, 1 yel
3by^2=.096 1 bl, 2 yel
y^3=.008 all yellow
.
Ed
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