library(ggplot2)
Grades <- c(23, 61, 61, 66, 74, 75, 77, 80, 84, 84, 85, 86, 86, 89, 93, 94)
summary(Grades)
## Min. 1st Qu. Median Mean 3rd Qu. Max.
## 23.0 72.0 82.0 76.1 86.0 94.0
c <- qplot(Grades, main = "Midterm 1 Grade Distribution", binwidth = 5)
c + geom_histogram(fill = "darkgray", color = "black", binwidth = 5)
| Problem | Concept | Class Average |
|---|---|---|
| 1 | Linear systems terminology | 91.67% |
| 2 | Vector formula for a line | 78.13% |
| 3 | Using RREF to solve a linear system | 85.16% |
| 4 | Row operations | 89.84% |
| 5 | Matrix multiplication | 87.50% |
| 6 | Lines intersecting planes | 60.94% |
| 7 | Span | 67.19% |
| 8 | Linear transformations notaion | 71.09% |
| 9 | Abstraction | 40.63% |
| 10 | Linear independence | 83.59% |
| 11 | Definitions | 57.81% |
| 12 | Span | 60.94% |
| 13 | Vector geometry | 95.31% |