Question

The probability of winning a prize in a local contest is 1/6. Find the actual odds against winning a prize.
1)1:5
2)6:1
3)5:1
4)1:6

Answers

Answered by GPT-4o mini
To find the odds against winning a prize, we first need to calculate the probability of not winning a prize.

The probability of winning a prize is given as \( \frac{1}{6} \). Therefore, the probability of not winning a prize is:

\[
1 - \frac{1}{6} = \frac{5}{6}
\]

Odds against an event are given by the ratio of the probability of the event not occurring to the probability of the event occurring. So, the odds against winning a prize are:

\[
\text{Odds against} = \frac{\text{Probability of not winning}}{\text{Probability of winning}} = \frac{\frac{5}{6}}{\frac{1}{6}} = \frac{5}{1}
\]

Thus, the odds against winning a prize are \( 5:1 \).

The correct answer is **3) 5:1**.

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