What is Frequency? Definition and Examples

Frequency refers to the number of times a repeating event occurs within a specific time.

Some Examples of Frequency in Real-Life

We can use frequency to describe the number of heartbeats per unit of time. The frequency of a human heartbeat is about 60 to 100 beats per minute.

We can use frequency to describe the number of earthquakes per year. As of this writing, the National Earthquake Information Center says that the frequency of earthquakes big enough to be recorded is about 30000 per year.

Note that frequency can also refer to the number of times an item occurs in a dataset.

For example, a dataset consists of the following numbers:

4, 5, 2, 4, 6, 4, 9, 1, 0, 2, 4, 8, 4

The frequency of the number 4 is 5 because 4 appears 5 times.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
Share this page: