1. Mean
2. Median
3. Mode
Measure of Location
A measure which is located in different place in the array is called the measure of location. Median is one kind of measure of location, because median divided whole data set with two parts.
Why important measure of location?
If you need any number in a data set which is divided the whole data set with in 1:3. It means left side of this set has 1/4 of data and right side has 3/4 data. Most frequently used measure of locations are :