Are Multiples Betting very common in sports betting, or is it the single Betting?

Question

talking about sports betting websites:

what is the precentage of Multiples Betting out of all sports betting?

Answer 1

Not sure of  exact percentage but singles are more common.

http://www.printyourbrackets.com/sportsb...

Answer 2

Its hard to tell, but as far as I know the singles are more used, especially now when there are exchanges like http://bettingwise.hit.bg/Betfairsports....

where you can bet on singles on every sport and get a higher odds than the bookmakers