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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male. Example 2. An increase of $0.15 on a price of $2.50 is an increase by a fraction of 0.15 / 2.50 = 0.06. Expressed as a percentage, this is a 6% increase.

  3. Data compression ratio - Wikipedia

    en.wikipedia.org/wiki/Data_compression_ratio

    Thus, a representation that compresses the storage size of a file from 10 MB to 2 MB yields a space saving of 1 - 2/10 = 0.8, often notated as a percentage, 80%. For signals of indefinite size, such as streaming audio and video, the compression ratio is defined in terms of uncompressed and compressed data rates instead of data sizes:

  4. Household income in the United States - Wikipedia

    en.wikipedia.org/wiki/Household_income_in_the...

    Median U.S. household income per County in 2021 Median U.S. household income through 2019 U.S. real median household income reached $63,688 in January 2019, an increase of $171 or 0.3% over one month over that of December 2018. This article is part of a series on Income in the United States of America Topics Household Personal Affluence Social class Income inequality gender pay gap racial pay ...

  5. Margin of error - Wikipedia

    en.wikipedia.org/wiki/Margin_of_error

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  6. Basis point - Wikipedia

    en.wikipedia.org/wiki/Basis_point

    A basis point (often abbreviated as bp, often pronounced as "bip" or "beep" [1]) is one hundredth of 1 percentage point. Changes of interest rates are often stated in basis points. For example, if an existing interest rate of 10 percent is increased by 1 basis point, the new interest rate would be 10.01 percent. [2]

  7. REI Is Offering Up to 50% Off Editor-Fave Hoka and New ... - AOL

    www.aol.com/rei-offering-50-off-editor-164400900...

    There are three versions of the Bondi 7 on sale at REI—one, a teal and red men’s shoe in size 14 for 50 percent off; another, a gray and white men’s shoe in size 10 wide for 50 percent off ...

  8. Sieve analysis - Wikipedia

    en.wikipedia.org/wiki/Sieve_analysis

    A sieve analysis (or gradation test) is a practice or procedure used in geology, civil engineering, and chemical engineering to assess the particle size distribution (also called gradation) of a granular material by allowing the material to pass through a series of sieves of progressively smaller mesh size and weighing the amount of material that is stopped by each sieve as a fraction of the ...

  9. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    Sample size determination or estimation is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined ...