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2. Luxottica - Wikipedia

   en.wikipedia.org/wiki/Luxottica

   Luxottica. Luxottica Group S.p.A. is an Italian eyewear multinational corporation headquartered in Milan. As a vertically integrated company, Luxottica designs, manufactures, distributes, and retails its eyewear brands through its own subsidiaries. It is the largest eyewear company in the world. [5][6] It is, since October 2018, a subsidiary of ...

3. 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 ...

4. Steam (service) - Wikipedia

   en.wikipedia.org/wiki/Steam_(service)

   Steam is a video game digital distribution service and storefront managed by Valve.It was launched as a software client in September 2003 to provide game updates automatically for Valve's games and expanded to distributing third-party titles in late 2005.

5. Standard deviation - Wikipedia

   en.wikipedia.org/wiki/Standard_deviation

   Stock A over the past 20 years had an average return of 10 percent, with a standard deviation of 20 percentage points (pp) and Stock B, over the same period, had average returns of 12 percent but a higher standard deviation of 30 pp. On the basis of risk and return, an investor may decide that Stock A is the safer choice, because Stock B's ...

6. 2024 Bangladesh quota reform movement - Wikipedia

   en.wikipedia.org/wiki/2024_Bangladesh_quota...

   The 2024 Bangladesh quota reform movement, also known as the July Revolution, [d] was a series of anti-government [e] and pro- democracy [f] protests in Bangladesh, spearheaded primarily by university students. Initially focused on restructuring quota-based systems for government job recruitment, the movement expanded against what many perceive ...

7. Sodium carbonate - Wikipedia

   en.wikipedia.org/wiki/Sodium_carbonate

   Infobox references. Sodium carbonate (also known as washing soda, soda ash and soda crystals) is the inorganic compound with the formula Na2CO3 and its various hydrates. All forms are white, odourless, water-soluble salts that yield alkaline solutions in water. Historically, it was extracted from the ashes of plants grown in sodium-rich soils ...