Suppose Professor Alpha and Professor Omega teach finance. Records obtained from

Question

past students indicate that students in Professor Alpha’s class have a mean score of 80%
with a standard deviation of 5%, while past students in Professor Omega’s class have a
mean score of 80% with a standard deviation of 10%. Decide which professor to take the
class from, using a statistical argument.

Answer 1

hard to say.
You have a better chance of scoring a nice safe 80% in Alpha's class
But you have a better chance of scoring higher in Omega's class. Of course, there's always a chance of scoring lower, as well.

Best bet -- study hard, and the teacher makes little difference.