| Here
is a histogram of the first midterm grades. |
|
|
|
|
|
| The
score numbers on the bottom axis should be under the large tick marks on the
bottom axis. |
|
|
| In
the numerical presentation, the number in the Frequency column is the number
of grades |
| between
the Bin number just above its row and the Bin number in its row. |
|
|
| For
example, there are 17 grades between 50 and 60 in both the table (numerical
presentation) and histogram. |
| They
are not all at 60. |
|
|
| 27% of the grades
are under 50 according to the pink dots in the histogram and Cumulative %
column in the table. |
|
|
|
|
|
| Bin |
Frequency |
Cumulative % |
|
| 0 |
0 |
.00% |
|
| 10 |
0 |
.00% |
|
| 20 |
2 |
2.53% |
|
| 30 |
8 |
12.66% |
|
| 40 |
6 |
20.25% |
|
| 50 |
6 |
27.85% |
|
| 60 |
17 |
49.37% |
|
| 70 |
14 |
67.09% |
|
| 80 |
6 |
74.68% |
|
| 90 |
10 |
87.34% |
|
| 100 |
9 |
98.73% |
|
| 110 |
1 |
100.00% |
|
| More |
0 |
100.00% |
|
| |
|
|
|
|
|
|
|
Mean is |
59.7% |
|
|
Median is |
59.5% |
|
|
Std Dev is |
24 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
