1.

The following table gives the distribution of students of two sections according to the mark obtained by them: Section A Section B Marks Frequency Marks Frequency 0 − 10 10 − 20 20 − 30 30 − 40 40 − 50 3 9 17 12 9 0 − 10 10 − 20 20 − 30 30 − 40 40 − 50 5 19 15 10 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.

Answer»

The following table gives the distribution of students of two sections according to the mark obtained by them:























Section A

Section B

Marks

Frequency

Marks

Frequency

0 − 10



10 − 20



20 − 30



30 − 40



40 − 50

3



9



17



12



9

0 − 10



10 − 20



20 − 30



30 − 40



40 − 50

5



19



15



10



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.


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