21. The following are the scores of two groups of class IX students in a test of reading ability
SCORES
GROUP A
GROUP B
32-34
13
2,2
35-37
12
38-40
20
12
41-43
8
44-46
16
4
47-49
10
33
50-52
4
2
TOTAL
92
68
Construct a frequency polygon for each of these two groups on the same axes.
Answers
Answer:
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