Statistic  Value
mean       83.8
std-dev    15.64834139
median     89
min        31
max        98
mode       93

Condition      Count
0<score<=50    2
50<score<=60   0
60<score<=70   5
70<score<=80   3
80<score<=90   15
90<score<=100  16

Problem  Mean         Standard Dev
1        14.88571429  3.436580282
2        20.31428571  2.730776969
3        28.45714286  6.621457353
4        20.14285714  6.394588048