MOM'S SECRET ROOM

[ONEBGG]

A friend of mine told me the other day that my statistics students must really hate me. The friend informed me that a student complained to him that my last test was so hard that EVERYONE scored below the mean and even the standard deviation was NEGATIVE! The student, however, told my friend he was a wee bit optimistic. His score was so low that he just knew that it would regress toward the mean on the next test!!
*Well, I am proud that my test set two new world records in the annals of statistics. On the other hand, maybe I should carefully go over the teaching notes that cover these topics. Anyway, a big thank you goes out to Steven C. Marcus for suggesting this joke. Steve, I hope you don't mind the embellishments that were tacked on.