Question

A gas station offers a lucky draw to customers. Each time you spend more than $20 on gas, you can make a draw to win a prize. The probability of winning a prize is 1/12. Suppose you buy gas 4 times. What is the probability of you winning a prize each time?

Answer 1

1/12 * 1/12 * 1/12 * 1/12 or (1/12)^4

To find the chances of winning each times, multiply the denominators together to find the probability. In this case it's a 1/20736 chance (0.0048%)

Answer 2

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