Man-hour

A compound unit, used to compare the amount of “work” done by a person working constantly for an hour, against other tasks to be completed.

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Rate

A comparison between two quantities of a different type, rather than of the same type.

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Rate, multipart

A comparison between more than two quantities of a different type.

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Ratio

A comparison between two quantities of the same type.

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Ratio, multipart

A comparison between more than two quantities of the same type.

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VO2 max

A multipart rate used to measure the maximum amount of oxygen a person can use during maximal exercise.

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