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  2. Coupon collector's problem - Wikipedia

    en.wikipedia.org/wiki/Coupon_collector's_problem

    Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more ...

  3. Zazzle - Wikipedia

    en.wikipedia.org/wiki/Zazzle

    Zazzle is an American online marketplace that allows designers and customers to create their own products with independent manufacturers (clothing, posters, etc.), as well as use images from participating companies. Zazzle has partnered with many brands to amass a collection of digital images from companies like Disney, Warner Brothers and NCAA ...

  4. Postage stamp problem - Wikipedia

    en.wikipedia.org/wiki/Postage_stamp_problem

    For example, suppose the envelope can hold only three stamps, and the available stamp values are 1 cent, 2 cents, 5 cents, and 20 cents. Then the solution is 13 cents; since any smaller value can be obtained with at most three stamps (e.g. 4 = 2 + 2, 8 = 5 + 2 + 1, etc.), but to get 13 cents one must use at least four stamps.

  5. History of United States postage rates - Wikipedia

    en.wikipedia.org/wiki/History_of_United_States...

    Postal rates to 1847. Initial United States postage rates were set by Congress as part of the Postal Service Act signed into law by President George Washington on February 20, 1792. The postal rate varied according to "distance zone", the distance a letter was to be carried from the post office where it entered the mail to its final destination.

  6. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  7. War savings stamps of the United States - Wikipedia

    en.wikipedia.org/wiki/War_savings_stamps_of_the...

    The United States Treasury Department issued its first war savings stamps in late 1917 in order to help pay for the costs incurred through involvement in World War I. The estimated cost of World War I for the United States was approximately $32 billion, and by the end of the war, the United States government had issued a total of $26.4 billion ...

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