Question
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?
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?
Answers
PsyDAG
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.
Second one = 39/52
Third one = 38/51
The probability of all events occurring is found by multiplying the probabilities of the individual events.