Asked by rose
find the probility that when 4 managers are randomly selected from a group of 20, the 4 oldest are selected
Answers
Answered by
Reiny
The number of quartets from the 20 is
C(20,4) = 20!/(16!4!) = 4845
The "4 oldest" would be one of those groups of 4.
so prob = 1/4845
C(20,4) = 20!/(16!4!) = 4845
The "4 oldest" would be one of those groups of 4.
so prob = 1/4845
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