Stretch your mind back to those maths lessons and calculate the average of the following set of figures:

3, 5, 7, 2, 8, 4, 4, 6, 7, 1
So:
Mean = $\large{\dfrac{sum}{n}}$
Mean is the mathematical term for the average in this case, and sum =  the sum of all the numbers and n = the number of numbers you are adding to make the sum.
Moving on we have:
Mean = $\large{\dfrac{3 + 5 + 7 + 2 + 8 + 4 + 4 + 6 + 7 + 1}{10}}$
Mean = ${\boldsymbol{\underline{\underline{4.7}}}}$

Go to the YouTube homepage  or to another video broadcasting site, and have a look at the ‘Most Popular’ section. Who produces the content? Are they traditional content providers or others?

A lot of the “popular” content I see seems to be based around popular computer games such as Modern Warfare 3 or Assasins Creed, popular Sports ( American Football anyone? ), and video reviews by YouTube users such as ( names taked fromt he first page of “popular content on 27 Dec 2011 ) ashens, HaatFilms, AtheneWins and 3RunTube.