The sum of the lower limit and upper limit of the modal class from the given distribution table.

Class 10-20 20-30 30-40 40-50 50-60 60-70
Frequency 2 8 17 11 9 8

A) 90 

B) 110 

C) 70 

D) 50

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2 Answers

Correct option is: C) 70

Since, highest frequency is 17 which is of the class 30-40.

\(\therefore\) Class 30-40 is the modal class of the data

Lower limit of the modal class = 30

Upper limit of the modal class = 40

\(\therefore\) Sum = 30 + 40 = 70

Hence, the sum of lower limit and upper limit of the modal class is 70.

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Correct option is: C) 70

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