WAEC - Further Mathematics (2011 - No. 28)
| Marks | 5-7 | 8-10 | 11-13 | 14-16 | 17-19 | 20-22 |
| No of students | 4 | 7 | 26 | 41 | 14 | 8 |
The table above shows the distribution of marks of students in a class. Find the upper class boundary of the modal class.
13.5
16
16.5
22.5
Giải thích
The modal class = 14 - 16
The upper class boundary = \(\frac{16 + 17}{2} = \frac{33}{2} = 16.5\)