Class Boundary/Examples/Age Classes

Examples of Class Boundaries

A special case of class boundaries concerns class intervals whose content consists of the ages of people.


The boundary between recording age $22$ and age $23$, for example, is actually the $23$rd birthday.

Hence a set of class intervals:

$16 \le x < 18$
$18 \le x < 23$
$\ldots$

would have class boundaries:

$16$
$18$
$23$

and so on.


Sources

  • 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): class boundaries
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