All interesting issues in natural history are questions of relative frequency, not single examples.

In all other British counties, its relative frequency was below national average.

One way is to use the relative cumulative frequency as an estimate.

The names suggest the relative frequency with which these functions are performed.

It can also be seen that there is a negligible relationship between relative frequency and coverage.

Table 15reports the relative frequency of daily dose regimens by hair color group.

The analysts then try to use historical data to estimate the relative frequency of those variables.

That is to say, it must depict the "relative frequency" of said content.

Note that alternative formulations may include relative frequencies as weight factors.

Maybe, it constitutes a relative frequency, however, in this case the corresponding event is unclear.