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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. Alibaba Group - Wikipedia

   en.wikipedia.org/wiki/Alibaba_Group

   Alibaba Group Holding Limited, branded as Alibaba, is a Chinese multinational technology company specializing in e-commerce, retail, Internet, and technology.Founded on 28 June 1999 in Hangzhou, Zhejiang, the company provides consumer-to-consumer (C2C), business-to-consumer (B2C), and business-to-business (B2B) sales services via Chinese and global marketplaces, as well as local consumer ...

4. Machu Picchu - Wikipedia

   en.wikipedia.org/wiki/Machu_Picchu

   1983 (7th Session) Area. 38,160.87 ha. Machu Picchu is a 15th-century Inca citadel located in the Eastern Cordillera of southern Peru on a 2,430-meter (7,970 ft) mountain ridge. [2] [3] Often referred to as the "Lost City of the Incas", it is the most familiar icon of the Inca Empire. It is located in the Machupicchu District within Urubamba ...

5. Coefficient of determination - Wikipedia

   en.wikipedia.org/wiki/Coefficient_of_determination

   The sum of squares of residuals, also called the residual sum of squares: The total sum of squares (proportional to the variance of the data): The most general definition of the coefficient of determination is. In the best case, the modeled values exactly match the observed values, which results in and R2 = 1.

6. HTTPS - Wikipedia

   https://en.wikipedia.org/wiki/HTTPS

   e. Hypertext Transfer Protocol Secure ( HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It uses encryption for secure communication over a computer network, and is widely used on the Internet. [1] [2] In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL).

7. Hannibal - Wikipedia

   en.wikipedia.org/wiki/Hannibal

   Hannibal ( / ˈhænɪbəl /; Punic: 𐤇𐤍𐤁𐤏𐤋, romanized: Ḥannībaʿl; 247 – between 183 and 181 BC) was a Carthaginian general and statesman who commanded the forces of Carthage in their battle against the Roman Republic during the Second Punic War . Hannibal's father, Hamilcar Barca, was a leading Carthaginian general during ...