Demographics..

Demographics 

Measurable characteristics of media consumers  such as:

      -age 

     -gender

     -race 

     -education 

     -income level

Demographics are characteristics and statistical information which distinguish a group of people. These characteristics commonly include-
- age 
-gender 
-ethnicity 
-occupation  
-interests 
....and other quantifiable criteria.

 A business’ target demographic captures the group of people at which their products or services are aimed. So a Music Magazines target demographic captures the whole image of the group of people its aimed at by appealing to what would interest them. Advertisements created through ad platforms such as Facebook, AdSense and AdWords usually allow for you to specify certain demographic information so that your ad targets the interested people.