Make a frequency polygon and histogram using the given data:

Marks Obtained 10−20 20−30 30−40 40−50 50−60 60−70

Number of Students 5 12 15 22 14 4

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Solution

For drawing a frequency polygon, we simply join the top mid-points of the rectangle of the histogram as drawn above in the first part using a straight line.

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Similar questions

Marks Obtained	0−10	10−20	20−30	30−40	40−50	50−60	60−70	70−80
Number of Students	10	16	20	20	22	15	8	5

Marks	0−10	10−20	20−30	30−40	40−50	50−60	60−70	70−80
Number of Students	5	7	15	25	20	15	8	5

Marks	10−20	20−30	30−40	40−50	50−60	60−70
No. of Students	8	11	9	25	12	16

Marks	0−10	10−20	20−30	30−40	40−50	50−60	60−70	70−80
Number of Students	5	10	20	40	30	20	10	4

Valuable	0−10	10−20	20−30	30−40	40−50	50−60	60−70
Frequency	7	12	18	25	16	14	8

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