Santosh Yadav provided special care to a climber who lay dying at the south pole in 1992 Everest Mission. She saved Mohan Singh, who would have lost his life had she not shared her oxygen with him.
During the 1992 Everest expedition, Santosh helped her teammates. She tried to save a climber who was dying at the South Col but couldn't. However, she did manage to save another climber, Mohan Singh, by sharing her oxygen with him.

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.