Ex 12.1, 9 - Chapter 12 Class 9 Statistics

Last updated at August 14, 2026 by

Ex 12.1, 9 - 100 surnames were randomly picked up from a local telepho - Ex 12.1

part 2 - Ex 12.1, 9 - Ex 12.1 - Serial order wise - Chapter 12 Class 9 Statistics
part 3 - Ex 12.1, 9 - Ex 12.1 - Serial order wise - Chapter 12 Class 9 Statistics part 4 - Ex 12.1, 9 - Ex 12.1 - Serial order wise - Chapter 12 Class 9 Statistics

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Transcript

Ex 12.1, 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: (i) Draw a histogram to depict the given information. The data has class intervals of varying width. So, we calculate adjusted frequency Ex 12.1, 9 (ii) Write the class interval in which the maximum number of surname lie. Maximum number of surnames lies is 6 8 as it has 44 surnames in it

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