Q2Short answerExercise 14.4
Refer to Q1 above. Construct a grouped frequency distribution table with width 10 of each class, in such a way that one of the classes is 10 - 20 (20 not included).
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Class intervals Frequency 0 - 10 4 10 - 20 7 20 - 30 5 30 - 40 10 40 - 50 5 50 - 60 8 60 - 70 5 70 - 80 8 80 - 90 5 90 - 100 3 10. a = 5, frequency of 30 is 28 and that of 70 is 24. 11. 2 : 1 12. Mean = 75.64, Median = 77, Mode = 85