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  • The following is the distribution of weights (in kg) of 40 persons : Weight (in kg) 40-45 45-50 50-55 55-60 60-65 65-70 70-75 70-75 Number of person4 413 56 Construct a cumulative frequency distribution (of the less than type) table for the data above.

The following is the distribution of weights (in kg) of 40 persons :

Weight (in kg) 40-45 45-50 50-55 55-60 60-65 65-70 70-75 70-75
Number of person 4 4 13 5 6 5 2 1

   Construct a cumulative frequency distribution (of the less than type) table for the data above.

Answers (1)

Solution.      Frequency distribution: It tells how frequencies are distributed over values in a frequency distribution. However mostly we use frequency distribution to summarize categorical variables.

CI. f cf
40-45 4 4
45-50 4 8
50-55 13 21
55-60 5 26
60-65 6 32
65-70 5 37
70-75 2 39
75-80 1 40

 

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