I guess you didn't just pick it random still you depends on the number of odds, we know how does the odds works it just shows the number of bet in a particular game also the odds tells which team or player has the higher potential to win, I don't consider this as a random thing because possible there's a thought that you will still would like to save your money at least. If you will pick it just randomly possible you will just once you see the option you will click this and not just wonder with the odds.