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  1. en.wikipedia.org › wiki › Used_bookUsed book - Wikipedia

    Used books typically become available on the market when they are sold or given to a second-hand shop, church used book sale or used bookstore; they are usually sold for about half or three-quarters the price of what they would cost new, though rare books and others still in demand or hard to obtain might sell for more than this. Some new book ...

  2. The sword-billed hummingbird ( Ensifera ensifera) is a neotropical species of hummingbird from the Andean regions of South America. Among the largest species of hummingbird, it is characterized by its unusually long beak, being the only bird to have a beak longer than the rest of its body, excluding the tail.

  3. Example graph of a logistic regression curve fitted to data. The curve shows the estimated probability of passing an exam (binary dependent variable) versus hours studying (scalar independent variable). See Example for worked details. In statistics, the logistic model (or logit model) is a statistical model that models the log-odds of an event as a linear combination of one or more independent ...

  4. For instance, consider a call center which receives, randomly, an average of λ = 3 calls per minute at all times of day. If the calls are independent, receiving one does not change the probability of when the next one will arrive. Under these assumptions, the number k of calls received during any minute has a Poisson probability distribution ...

  5. en.wikipedia.org › wiki › 00 - Wikipedia

    0 (zero) is a number representing an empty quantity. Adding 0 to any number leaves that number unchanged. In mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 has the result 0, and consequently, division ...

  6. Ethnologue (2023) The following languages are listed as having 45 million or more total speakers in the 26th edition of Ethnologue published in 2023. This section does not include entries that Ethnologue identifies as macrolanguages encompassing all their respective varieties, such as Arabic, Lahnda, Persian, Malay, Pashto, and Chinese.

  7. Joanne Rowling CH OBE FRSL (/ ˈ r oʊ l ɪ ŋ / ROH-ling); born 31 July 1965), known by her pen name J. K. Rowling, is a British author and philanthropist.She wrote Harry Potter, a seven-volume fantasy series published from 1997 to 2007. The series has sold over 600 million copies, been translated into 84 languages, and spawned a global media franchise including films and video games.