Posted by Jen on Friday, July 22, 2011 at 11:46am.
A certain drawing states that the odds of winning are 117:168. What would be the odds against winning?
would it be 168/117?

Math  John, Friday, July 22, 2011 at 11:49am
No, again 168 is the total. So if you take 168117(Which is the odds for winning) you get 51. So your odds against winning are 51/168

Math  Jen, Friday, July 22, 2011 at 11:53am
okay, but my only options to choose from are:
117:168
117:285
168:285
168:117
??

Math  bobpursley, Friday, July 22, 2011 at 1:11pm
Odds....I hate teaching that.
If in a contest, 3 people can win, and 5 loose, the probablility of winning is 3/8
The odds are stated to be 3:5
It is a crazy system. Bet on a horse 1:1, and you have .5 probabliltiy of winning.
So here, 117 winners, 168 loosers, so the probability of loosing is 168/(168+117), and the odds of loosing is 168:117
Nuts to the math of odds.
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