# Which measures of central tendency can I use?

The measures of central tendency you can use depends on the level of measurement of your data.

- For a
**nominal**level, you can only use the**mode**to find the most frequent value. - For an
**ordinal**level or ranked data, you can also use the**median**to find the value in the middle of your data set. - For
**interval**or**ratio**levels, in addition to the mode and median, you can use the**mean**to find the average value.