93 students took the midterm

Midterm as a whole: mean  61.7742
                    stdev 16.083

Problem  1:  mean  3.053763
             stdev 1.393182
Problem  2:  mean  3.913978
             stdev 0.580247
Problem  3:  mean  3.304659
             stdev 1.215841
Problem  4:  mean  2.531362
             stdev 2.132692
Problem  5:  mean  1.250000
             stdev 1.930312
Problem  6:  mean  3.337814
             stdev 1.915258
Problem  7:  mean  3.714158
             stdev 1.611608
Problem  8:  mean  4.879032
             stdev 0.609747
Problem  9:  mean  4.758065
             stdev 0.813663
Problem 10:  mean  2.853943
             stdev 1.801187
Problem 11:  mean  3.024194
             stdev 1.978928
Problem 12:  mean  4.135305
             stdev 1.690286
Problem 13:  mean  4.202509
             stdev 1.624300
Problem 14:  mean  3.776882
             stdev 1.805183
Problem 15:  mean  2.452509
             stdev 2.438472
Problem 16:  mean  0.338710
             stdev 1.364215
Problem 17:  mean  5.287634
             stdev 2.654360
Problem 18:  mean  1.075269
             stdev 2.445892
Problem 19:  mean  3.086918
             stdev 3.978848
Problem 20:  mean  0.716846
             stdev 2.164085
Problem 21:  mean  0.080645
             stdev 0.773521