Asked by MW
Seven chips labeled A B C D E F and G are placed in a jar. Five chips are drawn at random.
Find the probability thatc chips A and B are selected.
Find the probability thatc chips A and B are selected.
Answers
Answered by
Reiny
number of ways to draw 5 chips from 7 = C(7,5)
= 21
number of ways to draw the A and B and any 3 others
= 1xC(5,3) = 10
so prob of A and B among the 5 = 10/21
= 21
number of ways to draw the A and B and any 3 others
= 1xC(5,3) = 10
so prob of A and B among the 5 = 10/21
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