The professor decides to grade the class as follows: Anyone above 3 standard deviations from the mean gets an A+, anyone between +2 and +3 standard deviations gets an A, anyone between +1 and +2 standard deviations gets an A-, anyone between +0.5 and +1 standard deviations gets a B+, and anyone between 0 and +0.5 standard deviations gets a B. Johnny scores an 88. What is his class grade?
e. With the same score distribution as noted above, what is the minimum score someone must have in order to get a B in the class?