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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    Thus, in the above example, after an increase and decrease of x = 10 percent, the final amount, $198, was 10% of 10%, or 1%, less than the initial amount of $200. The net change is the same for a decrease of x percent, followed by an increase of x percent; the final amount is p (1 - 0.01 x )(1 + 0.01 x ) = p (1 − (0.01 x ) 2 ) .

  3. Plus–minus sign - Wikipedia

    en.wikipedia.org/wiki/Plus–minus_sign

    The symbols ± and ∓ are used in chess annotation to denote a moderate but significant advantage for White and Black, respectively. [4] Weaker and stronger advantages are denoted by ⩲ and ⩱ for only a slight advantage, and +– and –+ for a strong, potentially winning advantage, again for White and Black respectively.

  4. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Excel 2.0 for Windows, which was modeled after its Mac GUI-based counterpart, indirectly expanded the installed base of the then-nascent Windows environment. Excel 2.0 was released a month before Windows 2.0, and the installed base of Windows was so low at that point in 1987 that Microsoft had to bundle a runtime version of Windows 1.0 with ...

  5. Mortgage and refinance rates for Dec. 2, 2024: Average rates ...

    www.aol.com/finance/mortgage-and-refinance-rates...

    The fixed rate for a 15-year mortgage is 6.10%, up 8 basis points from last week's average 6.02%. These figures are lower than a year ago, when rates averaged 7.22% for a 30-year term and 6.56% ...

  6. Pearson correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Pearson_correlation...

    Pearson's correlation coefficient is the covariance of the two variables divided by the product of their standard deviations. The form of the definition involves a "product moment", that is, the mean (the first moment about the origin) of the product of the mean-adjusted random variables; hence the modifier product-moment in the name.

  7. e (mathematical constant) - Wikipedia

    en.wikipedia.org/wiki/E_(mathematical_constant)

    The numberoshi e is a mathematical constant approximately equal to 2.71828 that is the base of the natural logarithm and exponential function.It is sometimes called Euler's number, after the Swiss mathematician Leonhard Euler, though this can invite confusion with Euler numbers, or with Euler's constant, a different constant typically denoted .

  8. Microsoft - Wikipedia

    en.wikipedia.org/wiki/Microsoft

    Microsoft Corporation is an American multinational technology conglomerate headquartered in Redmond, Washington. [2] Founded in 1975, the company became highly influential in the rise of personal computers through software like Windows, and the company has since expanded to Internet services, cloud computing, video gaming and other fields.

  9. List of countries by tax rates - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_tax_rates

    15% (for those earning more than 5 mil. roubles a year) [190] 35% for non-residents 20% (standard rate) 10% (books, certain items of food and children goods) 0% (house or flat) Taxation in Russia Rwanda: 30% 0% 30% 18% Taxation in Rwanda Saint Kitts and Nevis: 33% [191] 0% — Taxation in Saint Kitts and Nevis Saint Barthélemy: 0% 0% 0% 0%