The marks obtained (out of 100) by a class of 80 students are given below :
| Marks | Number of students |
| 10-20 | 6 |
| 20-30 | 17 |
| 30-50 | 15 |
| 50-70 | 16 |
| 70-100 | 26 |
Construct a histogram to represent the data above.
To draw the histogram, we have to plot the frequency, i.e., the number of students on the y-axis and class interval, i.e., marks on the x-axis. We can construct the histogram as follows: