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Question 9
The following is the distribution of weights (in kg) of 40 persons.
Weight (in kg)40454550505555606065657070757580Number of persons441356521
Construct a cumulative frequency distribution (of the less than type) table for the data above.

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Solution

The cumulative distribution (less than type) table is shown below
Weight(in kg)Cumulative frequencyLess than 454Less than 504+4=8Less than 558+13=21Less than 6021+5=26Less than 6526+6=32Less than 7032+5=37Less than 7537+2=39Less than 8039+1=40

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