Class Interval/Examples/Arbitrary Example 1
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Examples of Class Intervals
Consider the problem domain of employee wages.
We may count the number of employees earning a wage in each of the following ranges:
- between $\pounds 0.00$ and $\pounds 199.99$
- between $\pounds 200.00$ and $\pounds 299.99$
- between $\pounds 300.00$ and $\pounds 399.99$
Hence the class intervals in question are:
- $\closedint {0.00} {199.99}$
- $\closedint {200.00} {299.99}$
- $\closedint {300.00} {399.99}$
Hence the number of employees in each class interval gives the class frequency of that interval.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): class intervals
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): class intervals