Find out the modal-class for the following table:

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1-3

3-5

5-7

7-9

answer is B.

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Detailed Solution

Concept: The value of an observation that occurs the most frequently is the mode of a distribution (highest frequency) .
The group, range, or interval of data for which the frequencies are provided in grouped data is referred to as a class.
Therefore, the class-interval (group) with the highest frequency is the modal class.
A distribution's "modal-class" is the category or group that occurs most frequently.
Class-intervals 1 through 3 have a frequency of 2, class-intervals 3 through 5 have a frequency of 6, and so on for the following table.
The class-interval 3–5 frequency with the highest frequency is 6. As a result, the distribution's modal-class (mode) is 3-5.
Hence, option 2 is correct.

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