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Question

Using the data in ex.10, draw frequency polygon without drawing histogram.

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Solution

Amount (in Rs) Class Marks Number of Students
20-30 25 4
30-40 35 7
40-50 45 8
50-60 55 6
60-70 65 9
70-80 75 10
80-90 85 5
90-100 95 1

The frequency polygon is given below:


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