Exam 1 statistics                   	   Exam 2 statistics                   
*****************                  	   *****************                  
(reported on   	                           (reported on   12/19)
N              =    27                     N              =   25
Average        =    210	                   Average        =   181
Stand Deviation=     61                    Stand Deviation=    48
Median         =    212                    Median         =   174
	
	
Qz  1  statistics 	                   Qz  2  statistics 
*****************	                   *****************
N              = 21  	                   N              =     26
Average        = 37  	                   Average        =     39
Stand Deviation= 12  	                   Stand Deviation=      6
Median         = 40  	                   Median         =     39
	
	
Qz  3  statistics 	                   Qz  4  statistics 
*****************	                   *****************
N              = 23  	                   N              =     18
Average        = 39  	                   Average        =     33
Stand Deviation= 9   	                   Stand Deviation=      4
Median         = 42  	                   Median         =     33
	
	
Qz  5  statistics 	                   Qz  6  statistics    
*****************	                   *****************
N              = 24                        N              =    25
Average        = 37                        Average        =    39
Stand Deviation=  8                        Stand Deviation=    8
Median         = 38                        Median         =    40
	
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).


Last update: Dec  19, 2013