Conduct a survey of population in your locality taking a sample of at least 100 families (i) Represent the data of age using the intervals of width 10 (ii)
Display the data of expenditure on education, health, household, food and clothing. (iv) Find coefficient of variation of the income of the families. (iv) Also find which income group is more stable in their earning.



THe data can be expressed on graph paper.Survey has to be done by you.To keep width of ten its easy because graph papers of Sundaram consist 10 ruled lines ,Collect he data then make the graph accordingly.

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