SOLUTION: Diego is in the French Club. There are a total of 21 students in the French Club. Four Students are randomely picked for a banquet. What is the probability that Diego will not be c

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Question 280867: Diego is in the French Club. There are a total of 21 students in the French Club. Four Students are randomely picked for a banquet. What is the probability that Diego will not be chosen?

4/21 get to go
7/21 will not go
so 7/21 ?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Diego is in the French Club. There are a total of 21 students in the French Club. Four Students are randomely picked for a banquet. What is the probability that Diego will not be chosen?
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# of groups of 4 that do not include Diego: 20C4 = 4845
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Total # of goups of 4 including Diego = 5985
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P(Diego will not be chosen): 4845/5985 = 0.8095
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Cheers,
Stan H.