What Do "Line" and "Over/Under" Mean on Betting Odds? How Are They Calculated?

Question

For example, before today's Celtics-Lakers game, the odds in the LA Times listed the Celtics as the favorite and the Lakers as the underdog, with a line of 2-1/2 and an over/under of 192. What does "2-1/2" mean and what does the cipher of 192 signify? Is it total points scored or something?

By the way, I'm not a bettor, just curious. =)

Answer 1

2 1/2 or 2.5 is the point spread of the game.  This means that if you were to wager on Boston, they would have to win by more than 2.5....3 or more for you to win.  IF you bet on the Lakers and they lose by less than 2.5...2 or less, then you win.  

You are correct about 192 being the total amount of points.  You can bet that it will be OVER or Under that amount.  

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Answer 2

You can find answers on that at http://www.bettingwise.hit.bg/Sportsbett...

It explains odds better