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14.The following data represents the cumulative frequency distribution of the daily earnings
of 100 workers in a factory.Form a frequency distribution table and draw an ogive curve and
hence, find the median.
Earnings in Rs. Number of workers

Not more than 20 13
Not more than 40 30

Not more than 60 45
Not more than 80 80
Not more than 100 100

15.During the medical check-up of 35 students of a class, their weights were recorded as
follows:-
Weight (in kg) Number of Students
Less than 38 0
Less than 40 3
Less than 42 5
Less than 44 9
Less than 46 14
Less than 48 28
Less than 50 32
Less than 52 35

Draw a less than type ogive for the given data. Hence, obtain the median weight from the
graph and verify the result by using the formula.

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