The seamstress was so impoverished that she was unable to provide for her feverish infant, so the Happy Prince gifted her a ruby. After being convinced by the prince, the swallow proceeded to the seamstress's home. The swallow left the ruby on the table where the woman worked since she had fallen asleep. Then, using his wings, he circled the bed, fanning the boy's forehead. The boy fell asleep as a result of feeling more at ease.

Section A | Section B | ||
|---|---|---|---|
Marks | Frequency | Marks | Frequency |
0 − 10 | 3 | 0 − 10 | 5 |
10 − 20 | 9 | 10 − 20 | 19 |
20 − 30 | 17 | 20 − 30 | 15 |
30 − 40 | 12 | 30 − 40 | 10 |
40 − 50 | 9 | 40 − 50 | 1 |
Represent the marks of the students of both the sections on the same graph by two frequency polygons. From the two polygons compare the performance of the two sections.