Question

Find the probability of winning a lottery if you must correctly select 4 numbers, each an integer from 0 to 9. The order is important. Assume that lottery numbers are selected at random. Express your answer as a fraction in simplest form
The probability of winning is

Answer 1

Each time you guess, you have a 1 in 10 chance of getting it correct. Doing this 4 times means you divide by ten each time you guess. This means you have a 1/10,000 chance of getting it correct.