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Frequency Polygon

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How to find class mark for a frequency polygon.

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Similar questions

Q. Assertion: We find mid points of a class interval as upper as

\frac{u p p e r c l a s s l i m i t + l o w e r c l a s s l i m i t}{2}

Reason: To draw frequency polygons independently without drawing histogram it is required to have class mark.
Which of the following is correct

Q. Assertion: We find midpoints of a class interval with the following formula.

\frac{u p p e r c l a s s l i m i t + l o w e r c l a s s l i m i t}{2}

Reason: To draw frequency polygons independently without drawing histogram it is required to have the class mark.
Which of the following is correct?

Q. Marks of students of a Class are represented in the frequency polygon shown below.

How many students got marks less than 20?

Q. For the frequency polygon, which class interval frequency 10 belongs to?

Q. For the frequency polygon, which class interval, highest frequency belong to?

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Frequency Polygon

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