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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    In mathematics, a percentage (from Latin per centum 'by a hundred') is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign (%), [1] although the abbreviations pct., pct, and sometimes pc are also used. [2] A percentage is a dimensionless number (pure number), primarily used for expressing proportions ...

  3. 68–95–99.7 rule - Wikipedia

    en.wikipedia.org/wiki/68–95–99.7_rule

    In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.

  4. Supermajority - Wikipedia

    en.wikipedia.org/wiki/Supermajority

    Supermajority. A supermajority is a requirement for a proposal to gain a specified level of support which is greater than the threshold of one-half used for a simple majority. Supermajority rules in a democracy can help to prevent a majority from eroding fundamental rights of a minority, but can also hamper efforts to respond to problems and ...

  5. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    The top grade, A, is given here for performance that exceeds the mean by more than 1.5 standard deviations, a B for performance between 0.5 and 1.5 standard deviations above the mean, and so on. [17] Regardless of the absolute performance of the students, the best score in the group receives a top grade and the worst score receives a failing grade.

  6. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    3.6% (1 in 28) – The Westmere Bank, New Zealand has a ruling gradient of 1 in 35, however peaks at 1 in 28; 3.33% (1 in 30) – Umgeni Steam Railway, South Africa [24] 3.0% (1 in 33) – several sections of the Main Western line between Valley Heights and Katoomba in the Blue Mountains Australia. [25]

  7. Now that the Fed has cut rates, is it time to buy or sell a home?

    www.aol.com/finance/now-fed-cut-rates-time...

    You don’t need to put down 20 percent, but you should expect to put down at least 3 to 5 percent (unless you get a VA or USDA loan). Commit to staying in the home for a while.

  8. Electoral threshold - Wikipedia

    en.wikipedia.org/wiki/Electoral_threshold

    All of them failed to cross the 5 percent threshold with PSNS having 3.65 percent, SNS 3.33 percent and HZD 3.26 percent respectively, thus allowing a center-right coalition despite having less than 43 percent of the vote. Norway, 2009.

  9. Percent sign - Wikipedia

    en.wikipedia.org/wiki/Percent_sign

    The percent sign % (sometimes per cent sign in British English) is the symbol used to indicate a percentage, a number or ratio as a fraction of 100. Related signs include the permille (per thousand) sign ‰ and the permyriad (per ten thousand) sign ‱ (also known as a basis point), which indicate that a number is divided by one thousand or ten thousand, respectively.