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Exam 1 statistics 
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       (reported on  10/03/17)
N              =    56
Average        =    156 
Stand Deviation=    26
Median         =    157
Min range      =    100-110
Max range      =    195-200
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Exam 2 statistics
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       (reported on   10/31/17)
N              =   56
Average        =   249
Stand Deviation=   44
Median         =   253
Min range      =   0-100
Max range      =   305-333


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Exam 3 statistics
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       (reported on  12/23/2017
N              =    56
Average        =   180
Stand Deviation=    53
Median         =   200
Min range      =   0-50
Max range      =   290-333


Definitions     Definitions
===========     ===========
Average         =  Sum of grades divided by number of exams
Stand Deviation =  Shows dispersion of grades. Roughly, 2/3 of the grades are
                   within 37 +/- 12 , and 95% within  37 +/-  2*12 if ave is 37 and std 12
Median          =  Half of the students got that much or less (and half, more than that).