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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. 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 ...

4. Promotional recording - Wikipedia

   en.wikipedia.org/wiki/Promotional_recording

   A promotional recording, promo, or plug copyis an audio or video recording distributed free, usually in order to promote a recording that is or soon will be commercially available. Promos are normally sent directly to broadcasters, such as music radioand televisionstations, and to tastemakers, such as DJs, music journalists, and critics, in ...

5. Early Prime Day deals under $50 — 40+ items to shop right now

   www.aol.com/lifestyle/early-prime-day-deals...

   Brittany Nims. July 12, 2024 at 1:51 PM. Early Prime Day deals under $50 — 40+ items to shop right now. If you weren't aware, there will be loads of deals unveiled across the internet over the ...

6. List of ISO 639 language codes - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_639_language_codes

   ISO 639 is a standardized nomenclature used to classify languages. [ 1] Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). [ 2] Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural ...

7. Cars? Pork? Perfume? China has many options if a trade war ...

   www.aol.com/news/cars-pork-perfume-china-many...

   Some Chinese companies might still be able to make a profit, even with duties as high as 30%. The provisional tariffs range from 17.4% to 38.1%, depending on the carmaker, and come on top of an ...