Revision as of 13:10, 2 October 2008 by Obrienam (Talk)

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Each candy bar has a coupon

2 different coupons

Any candy bar can have a random coupon

Q: How many bars do you need to buy on average to get both coupons?

1 bar = 1 coupon

X = # bars for second coupon

~Geom(1/2)

Avg. # of bars = 1 + 2 = 3

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Alumni Liaison

Correspondence Chess Grandmaster and Purdue Alumni

Prof. Dan Fleetwood