SOLUTION: What is the probability that both Barb and Bob are both on the same committee of 4 which is chosen fom their class of 10 people?
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Question 249997: What is the probability that both Barb and Bob are both on the same committee of 4 which is chosen fom their class of 10 people?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
nCr = n!/((n-r)!r!) Combination of n things taken r at a time.
.
4C2 / 10C4
=6/210
=1/35
.
Ed
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