Question

Frequency polygon is constructed by plotting frequencies against their a. standard deviations b. class marks c. variances d. means

Answer 1

Answer: variances is the ✔✔ answer.

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Answer 2

The frequency polygon is constructed by plotting frequencies against their b. class marks.

Explanation for the answer:

• A Class mark is the average of the upper limit and the lower limit of a class in a frequency distribution.
• In simple words, the class mark is the mid-value of the given class interval.
• A frequency polygon is constructed by plotting, frequency of the class interval and the mid value of the class.
• Hence, the correct answer among all the options is option b. class marks.

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