how to get an average vote of a set of nodes in one view (not for each node in the view)?

Hi,

what I want to get is an average vote of a set of nodes, each of which has its own vote, contained in a view.

(I just searched and did not find a solution. The one available is just to display the votes for each node using fivestar in a view list. )

For example, if a view mainly contains three nodes, each having votes separately 3, 5, 4, then I hope when I display this view, besides listing the three nodes and their corresponding votes, there is another filed at the view's bottom showing the avarage vote: 3+5+4/3 = 4.

Is this possible to do with fivestar and view? and how?

Thanks!!