Finding the pattern

That's an Excel/Office question: confused:

...based on his previos choices...

1. The time wasted researching 20 years of previous tests would be better spent reading the current book (they change every year, anyway)...

2. Probability has no memory; people do, therefore, a crystal ball would work better than VBA equations...

3. Math/science, at least, is cumulative; therefore, the first chapter must be digested before moving to succeeding chapters. Thus, the prof can't choose chapters at random anyway.

4. He could choose questions from the covered chapters at random; however, all profs I know of, write their own questions.

This reminds me of my father. He was a Physics Prof. and for 20'ish years in his Mathematical Methods class, he would always give the same problem as the first question on the first mid-term. "Write del^2 in spherical polar coordinates."

All of his past exams were on file in the Library.
He would tell the class that that was going to be the first question.
Every year, someone would get the question very wrong (as opposed to mistaken memory).

Listening in class is the best way to get a good grade. Besides, knowledge is the goal of the class, not a grade.