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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. Apple Wallet - Wikipedia

   en.wikipedia.org/wiki/Apple_Wallet

   Apple Wallet (or simply Wallet, known as Passbook prior to iOS 9) is a digital wallet developed by Apple Inc. and included with iOS and watchOS that allows users to store Wallet passes such as coupons, boarding passes, student ID cards, government ID cards, business credentials, resort passes, car keys, home keys, event tickets, public transportation passes, store cards, and – starting with ...

4. Buy one, get one free - Wikipedia

   en.wikipedia.org/wiki/Buy_one,_get_one_free

   Buy one, get one free. " Buy one, get one free " or " two for the price of one " is a common form of sales promotion. Economist Alex Tabarrok has argued that the success of this promotion lies in the fact that consumers value the first unit significantly more than the second one. So compared to a seemingly equivalent "Half price off" promotion ...

5. Casio V.P.A.M. calculators - Wikipedia

   en.wikipedia.org/wiki/Casio_V.P.A.M._calculators

   Casio V.P.A.M. calculators. Casio V.P.A.M. calculators are scientific calculators made by Casio which use Casio's Visually Perfect Algebraic Method ( V.P.A.M. ), Natural Display or Natural V.P.A.M. input methods. V.P.A.M. is an infix system for entering mathematical expressions, used by Casio in most of its current scientific calculators.

6. As their customers age, department stores chase younger ... - AOL

   www.aol.com/news/customers-age-department-stores...

   Baby Boomers are age 60 or older, according to Numerator’s definition. The firm defines Gen X as between ages 43 and 59. Numerator puts Millennials in the age 29 to 42 range, and Gen Z between ...

7. Walmart+ Week is here: How to save big during this member ...

   www.aol.com/lifestyle/walmart-plus-week-2024...

   Typically, Walmart+ members save 10 cents per gallon when stopping at one of the 13,000+ participating gas stops nationwide, including at Exxon, Mobil, Walmart and Murphy stations. But for this ...