Question

Example 9 The following table gives the age-distribution of the population and the number of unemployed in a town. Age No. of persons in '000 No. of unemployed 20-30 40 400 30-40 55 1,100 40-50 32 960 50-60 20 1,600 60-70 8 1,600 Find the coefficient of correlation r between the mid-values of the age groups and percentages of unemployed in different age-constituents.​

Answer 1

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