**Mean**

*is the sum of the added set of numbers.*

- put them in ascending order.
- you add all numbers in the set of data and you divide it by how many numbers there is you get the mean.

**Median** *is the middle number on a set of data. *

- put the in ascending order again.
- you look at the middle of all numbers.

**Mode** *is the number that is used most often. *

- always put the numbers in ascending order.
- a data that is seen in the set of numbers more that one time.

**Range ***is the difference between the highest ad the lowest data on a set of numbers*

- put in ascending order again.

Here is my mmm video :

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