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In probability, the coupon collector's problem models "collect all the coupons and win" contests. In its simplest form, suppose n distinct types of coupon are equally likely to occur: what is the expected number of coupons we must draw to collect at least one of each type?

1 vote

In the coupon collector's problem with group drawings, why does the probability decrease wit...

While late to the game I believe I understand the issue you are having. The case is not, as the comments suggest, because the equation is for exactly the number of stickers, but rather due to the natu …
Zack Ashman's user avatar