3. The table below shows data collected in a research on the relationship between monthly income and monthly expenditure of citizens in town Q. Use it to answer the following questions. Earner ABCDEF G HI J Income Ksh. "000" 44 65 50 57 96 94 110 34 79 65 Expenditure Ksh. "000" 41 60 40 50 80 68 84 30 55 48 (a) Fit the regression line of expenditure on income using least squares method. (b) Using the regression line obtained in (a) above, estimate the expected amount of expenditure of a Kenyan whose monthly income is Ksh. 75,000