Choose a student at random from the course described and observe what grade that student earns( with A+=4.3, A=4.0, A-=3.7, B+=3.3, B=3.0, B- = 2.7, C+=2.3, C-=1.7, D+=1.3, D=1.0, D-=0.7, and F=0.0).

A. What is the expected grade of a randomly chosen student?

B. The expected grade is not one of the 12 grades possible for one student. Explain why your result nevertheless makes sense as an expected value