Q. 9.     100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:

              

              (ii) Write the class interval in which the maximum number of surnames lie.

Answers (1)
S Sayak

The class interval in which the maximum number of surnames lie is 6 - 8

The weighted frequency of this class interval (taking 2 as the minimum class size) is 44.

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