Is age a discrete or continuous variable? Why?

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S.S Share
Jan 25, 2017


Discrete if measured in a number of years, minutes, seconds. However it would be continuous if measured to an exact amount of time passed since the start of something.


Age is measured in units that, if precise enough, could be any number. Therefore the set they come from is infinite. For example, someone could be #22.32698457# years old or #22.32698459# years old. We could be infinitly accurate and use an infinite number of decimal places, therefore making age continuous.

However, in everyday appliances, all values under #6# years and above #5# years are called #5# years old. So we use age usually as a discrete variable.

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