Relative frequency

As used in LifeWiki, relative frequency may mean one of the following:

• Occurrences of a particular item divided by the total occurrences of all items in a set. For example, see List of common still lifes.
• Occurrences of a particular item divided by occurrences of a reference item (usually the most frequent one). For example, in List of common evolutionary sequences, Honey farm predecessor is the reference item.

Which of these is intended is usually clear from the context, especially when one item (typically listed first) is shown as having a frequency of 1, in which case it is the reference item.

See also

• Frequency class