Following table gives the distribution of students of sections \(A\) and \(B\) of a class according to the marks obtained by them.
| Section \(A\) | Section \(B\) | ||
| Marks | Frequency | Marks | Frequency |
| \(0 - 15\) | \(5\) | \(0 - 15\) | \(3\) |
| \(15 - 30\) | \(12\) | \(15 - 30\) | \(16\) |
| \(30 - 45\) | \(28\) | \(30 - 45\) | \(25\) |
| \(45 - 60\) | \(30\) | \(45 - 60\) | \(27\) |
| \(60 - 75\) | \(35\) | \(60 - 75\) | \(40\) |
| \(75 - 90\) | \(13\) | \(75 - 90\) | \(10\) |
Draw the marks of the students of both the sections on the same graph by two frequency polygons without histogram. What do you observe?
| Section \(A\) | Section \(B\) | ||||
| Marks | Class Mark | Frequency | Marks | Class Mark | Frequency |
| \(0 - 15\) | \(5\) | \(0 - 15\) | \(3\) | ||
| \(15 - 30\) | \(12\) | \(15 - 30\) | \(16\) | ||
| \(30 - 45\) | \(28\) | \(30 - 45\) | \(25\) | ||
| \(45 - 60\) | \(30\) | \(45 - 60\) | \(27\) | ||
| \(60 - 75\) | \(35\) | \(60 - 75\) | \(40\) | ||
| \(75 - 90\) | \(13\) | \(75 - 90\) | \(10\) | ||