a) Compare the Variability of Expenditure of Families in Two Towns given as follows:________.

Expenditure Number of families

(Rupees) Town A Town B

21-30 3 2

31-40 61 14

41-50 132 20

51-60 153 27

61-70 140 28

71-80 51 7

81-90 2 2

b) Differentiate between absolute and relative measure with at least three examples?