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Percent-encoding. URL encoding, officially known as percent-encoding, is a method to encode arbitrary data in a uniform resource identifier (URI) using only the US-ASCII characters legal within a URI. Although it is known as URL encoding, it is also used more generally within the main Uniform Resource Identifier (URI) set, which includes both ...
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 ...
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.
Percentage point. A percentage point or percent point is the unit for the arithmetic difference between two percentages. For example, moving up from 40 percent to 44 percent is an increase of 4 percentage points (although it is a 10-percent increase in the quantity being measured, if the total amount remains the same). [ 1]
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. [18] 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.
Actual Percent Included Theoretical Percent Included 130+ Very Superior 2.6 2.2 120–129 Superior 6.9 6.7 110–119 High Average 16.6 16.1 90–109 Average 49.1 50.0 80–89 Low Average 16.1 16.1 70–79 Borderline 6.4 6.7 below 70 Mentally Retarded 2.3 2.2
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.
Extracellular fluid (1/3 of body water) is fluid contained in areas outside of cells. For a 40-litre body, about 15 litres is extracellular, [8] which amounts to 37.5%. Plasma (1/5 of extracellular fluid). Of this 15 litres of extracellular fluid, plasma volume averages 3 litres, [8] or 20%. Interstitial fluid (4/5 of extracellular fluid)