Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering a question chosen at...

Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering a question chosen at random from a universe of possible questions. (A strong student has a higher p than a weak student.) Answers to different questions are independent. Jodi is a good student for whom p = 0.75.13.