# The third quartile, denoted #Q_3#, is the data value such that what percent of the values are below it?

##### 1 Answer

Feb 24, 2015

If you work with quartiles, you first order your cases by value.

You then divide your cases in four equal groups.

The *value* of the case at the border between the first quart and the second is called the first quartile or

Between second and third is **median**

And between third and fourth is

So at the

**Extra** :

With large datasets *percentiles* are also used (the cases are then divided into 100 groups). If a value is said to be at the