The ages (in years) of 22 employ of a factory are as follows :-
39,56,44,47,48,55,56,29,33,41,47,28,59,44,47,40,29,33,47,28,26,25.
Arrange the given data in tabular form using tally marks.
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Answer:
Class Interval
Frequency
10-20
20-30
30-40
40-50
50-60
60-70
10
12
7
7
8
3
(i) For Cumulative Frequency 30−40 frequency is 7
(ii) Size is 11
Mid point for cumulative frequency 30−40 is 35.
(iii) Range =70−10=60
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