SOLUTION: A box contains 3 white, 3 black balls. 3 balls are chosen from the box what is the prob. that 2 are white and one is black.
a)balls are chosen with replacement
b)balls are chosen
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Question 455426: A box contains 3 white, 3 black balls. 3 balls are chosen from the box what is the prob. that 2 are white and one is black.
a)balls are chosen with replacement
b)balls are chosen without replacement
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
a)
b=1/2 and w=1/2
3b^2w=3/8
.
b)
(3C2 * 3C1)/6C3
=3*3/20
=9/20
.
Ed
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