Summary:
Letter Grade Equiv.:
0.000000 <= x < 0.380000 is a F
0.380000 <= x < 0.580000 is a D
0.580000 <= x < 0.780000 is a C
0.780000 <= x < 0.980000 is a B
0.980000 <= x is an A
Number of people of each letter grade:
F: 2
D: 2
C: 3
B: 5
A: 13
Number of correct and wrong answers for each questions:
Q1: C=19 W=6
Q2: C=15 W=10
Q3: C=16 W=0
Q4: C=17 W=8
Q5: C=4 W=21
Q6: C=13 W=12
Q7: C=11 W=14
Q8: C=22 W=3
Q9: C=21 W=4
Q10: C=17 W=8
Q11: C=9 W=16
Q12: C=23 W=2
Q13: C=17 W=8
Q14: C=19 W=6