Answer
The pair of courses EPR 630 and EPR 645 has a 1 in 21 chance of being selected.
Work Step by Step
There are 21 pairs of courses. So, any pair of courses has a 1 in 21 chance of being selected.
You need to log in to continue
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.