NCERT Exercise 12.1 Q9 - Statistics
Question: 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: 1-4(6), 4-6(30), 6-8(44), 8-12(16), 12-20(4). (i) Draw a histogram to depict the given information. (ii) Write the class interval in which the maximum number of surnames lie.
Answer: (i) Histogram constructed using adjusted frequency densities. (ii) The maximum number of surnames lie in the class interval 6 - 8.
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