Question

Paula is selling raffle tickets to raise money for the school band. The odds against winning a prize in the raffle are 9:1. What is the probability of winning a prize?Express your answer as a decimal. If necessary, round your answer to the nearest thousandth.0 09O 0.1O 10O 0.111

Answer 1

The odd against winning a prize in the raffle are 9:1. So, the number of unfavourable outcomes are 9 and the number of favourable outcomes are 1. The number of total outcomes are 10. Therefore, the probability of winning a prize is 1/10 that is equivalent to 0.1.

Thus, option B is correct.