SOLUTION: An online coupon service has 13 offers for free samples. How many different requests are possible if a customer must request exactly 3 free samples? How many are possible if the cu
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Question 1042022: An online coupon service has 13 offers for free samples. How many different requests are possible if a customer must request exactly 3 free samples? How many are possible if the customer may request up to 3 free samples?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
For exactly three samples, there are 13 choose 3 choices, or 286 choices.
Up to 3 samples is 13x12x11=1716 choices. ☺☺☺☺
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