10,000 raffle tickets were sold and you buy 12 tickets. Whats the odds against winning

prob of winning = 12/10000 = 3/2500

prob of not winning = 2497/2500

the odds against winning
= (2497/2500 : 3/2500
= 2497 : 3

To calculate the odds against winning, you need to know the number of winning tickets and the total number of tickets sold.

In this scenario, you bought 12 tickets out of 10,000 raffle tickets sold. However, we don't have information about the number of winning tickets. If you know the number of winning tickets, you can use that information to calculate the odds against winning.

The odds against winning are calculated by dividing the number of losing outcomes by the number of winning outcomes.

Odds Against Winning = Number of Losing Outcomes / Number of Winning Outcomes

Since we don't have the number of winning tickets, it is not possible to determine the odds against winning in this specific scenario.