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  2. Banach's matchbox problem - Wikipedia

    en.wikipedia.org/wiki/Banach's_matchbox_problem

    Banach's match problem is a classic problem in probability attributed to Stefan Banach. Feller [ 1 ] says that the problem was inspired by a humorous reference to Banach's smoking habit in a speech honouring him by Hugo Steinhaus , but that it was not Banach who set the problem or provided an answer.

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  4. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  5. Shape of a probability distribution - Wikipedia

    en.wikipedia.org/wiki/Shape_of_a_probability...

    The shape of a distribution will fall somewhere in a continuum where a flat distribution might be considered central and where types of departure from this include: mounded (or unimodal), U-shaped, J-shaped, reverse-J shaped and multi-modal. [1]

  6. Ljung–Box test - Wikipedia

    en.wikipedia.org/wiki/Ljung–Box_test

    The Ljung–Box test (named for Greta M. Ljung and George E. P. Box) is a type of statistical test of whether any of a group of autocorrelations of a time series are different from zero. Instead of testing randomness at each distinct lag, it tests the "overall" randomness based on a number of lags, and is therefore a portmanteau test .

  7. Total return index - Wikipedia

    en.wikipedia.org/wiki/Total_return_index

    A total return index is an index that measures the performance of a group of components by assuming that all cash distributions are reinvested, in addition to tracking the components' price movements. [1] While it is common to refer to equity based indices, there are also total return indices for bonds and commodities. [2]

  8. Match - Wikipedia

    en.wikipedia.org/wiki/Match

    3), 20–40% of siliceous filler, diatomite, and glue. [39] Safety matches ignite due to the extreme reactivity of phosphorus with the potassium chlorate in the match head. When the match is struck, the phosphorus and chlorate mix in a small amount and form something akin to the explosive Armstrong's mixture, which

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