Midterm 2 Grade Results

library(ggplot2)
Grades <- c(50, 52, 58, 67, 71, 81, 82, 82, 87, 88, 89, 92, 98, 98, 100)
summary(Grades)
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##    50.0    69.0    82.0    79.7    90.5   100.0
c <- qplot(Grades, main = "Midterm 2 Grade Distribution", binwidth = 10)
c + geom_histogram(fill = "darkgray", color = "black", binwidth = 10)

plot of chunk GradeInfo1

Results by Question

Problem Concept Class Average
1 Polynomial long division 82.00%
2 Volume of revolution: shells method 76.11%
3 Tabular integration 93.33%
4 Partial fractions 88.33%
5 Trigonometric integrals 64.67%
6 Improper integrals 77.33%
7 Work and area under a curve 78.67%
8 Integration by parts 75.33%
9 Trigonometric substitution 80.00%