i have a test tomorrow so i need to know how to do this problem. help me please!!

A IRS auditor randomly selects 3 tax returns from 53 returns of which 13 contain errors. what is the probability that she selects none of those errors?

1 answer

First one without errors = 40/53

Second one = 39/52

Third one = 38/51

The probability of all events occurring is found by multiplying the probabilities of the individual events.