library(ggplot2)
Grades <- c(55, 58, 65, 66, 67, 73, 76, 80, 81, 87, 89, 90, 91, 92, 92, 98)
summary(Grades)
## Min. 1st Qu. Median Mean 3rd Qu. Max.
## 55.0 66.8 80.5 78.8 90.2 98.0
c <- qplot(Grades, main = "Midterm 1 Grade Distribution", binwidth = 5)
c + geom_histogram(fill = "darkgray", color = "black", binwidth = 5)
| Problem | Concept | Class Average |
|---|---|---|
| 1 | Area between curves | 84.38% |
| 2 | Exponential functions | 89.06% |
| 3 | Derivatives with logarithms and chain rule | 77.08% |
| 4 | Differential equations | 79.17% |
| 5 | Direct proportionality | 81.25% |
| 6 | Integration with u-substitution | 78.13% |
| 7 | Slope fields | 78.13% |
| 8 | Inverse functions | 69.79% |
| 9 | Reference triangles | 71.35% |
| 10 | Logarithms | 85.42% |