Rate

:See also: rates (tax)

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A rate is a special kind of ratio, of two measurements with different units. It is a comparison of two measurements with different units, such as miles to gallons or cents to pounds. For example, suppose you spend 9 dollars on 2 pounds of candy. The rate $9 / 2 pounds compares the money spent to the number of pounds of candy.

Related Topics:
Ratio - Unit

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The division operator when dealing with units is sometimes expressed as "per". Also, if the units are expressed without abbreviation, the top unit is usually plural while the bottom is singular. For example, (5 meters)/(3 seconds) may be written as 5/3 meters per second.

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Often rate is a synonimous of rhythm or frequency, such as heart rate or sample rate.

Related Topics:
Rhythm - Frequency - Heart rate - Sample rate

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A unit rate is a rate that is simplified so it has a denominator of 1. This type of rate is frequently used when referring to statistics.

Related Topics:
Simplified - Statistics

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