1. Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013).make scatter plot and find a regression equation between house value and rental income.Then use the regression equation to find the rental income a house worth $230,000 and for a house worth $400,000.Which rental income that you calculated do you think is closer to the true rental income?Why?

Table #10.1.6: Data of House Value versus Rental

Value Rental Value Rental Value Rental Value Rental

81000 6656 77000 4576 75000 7280 67500 6864

95000 7904 94000 8736 90000 6240 85000 7072

121000 12064 115000 7904 110000 7072 104000 7904

135000 8320 130000 9776 126000 6240 125000 7904

145000 8320 140000 9568 140000 9152 135000 7488

165000 13312 165000 8528 155000 7488 148000 8320

178000 11856 174000 10400 170000 9568 170000 12688

200000 12272 200000 10608 194000 11232 190000 8320

214000 8528 208000 10400 200000 10400 200000 8320

240000 10192 240000 12064 240000 11648 225000 12480

289000 11648 270000 12896 262000 10192 244500 11232

325000 12480 310000 12480 303000 12272 300000 12480

2) The World Bank collected data on the percentage of GDP that a country spends on health expenditures ("Health expenditure," 2013) and also the percentage of women receiving prenatal care ("Pregnant woman receiving," 2013).The data for the countries where this information are available for the year 2011 is in table #10.1.8.Create a scatter plot of the data and find a regression equation between percentage spent on health expenditure and the percentage of women receiving prenatal care.Then use the regression equation to find the percent of women receiving prenatal care for a country that spends 5.0% of GDP on health expenditure and for a country that spends 12.0% of GDP.Which prenatal care percentage that you calculated do you think is closer to the true percentage?Why?

Table #10.1.8: Data of Health Expenditure versus Prenatal Care

Health Expenditure (% of GDP) Prenatal Care (%)

9.6 47.9

3.7 54.6

5.2 93.7

5.2 84.7

10.0 100.0

4.7 42.5

4.8 96.4

6.0 77.1

5.4 58.3

4.8 95.4

4.1 78.0

6.0 93.3

9.5 93.3

6.8 93.7

6.1 89.8

3)Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013).Find the correlation coefficient and coefficient of determination and then interpret both.

Table #10.1.6: Data of House Value versus Rental

Value Rental Value Rental Value Rental Value Rental

81000 6656 77000 4576 75000 7280 67500 6864

95000 7904 94000 8736 90000 6240 85000 7072

121000 12064 115000 7904 110000 7072 104000 7904

135000 8320 130000 9776 126000 6240 125000 7904

145000 8320 140000 9568 140000 9152 135000 7488

165000 13312 165000 8528 155000 7488 148000 8320

178000 11856 174000 10400 170000 9568 170000 12688

200000 12272 200000 10608 194000 11232 190000 8320

214000 8528 208000 10400 200000 10400 200000 8320

240000 10192 240000 12064 240000 11648 225000 12480

289000 11648 270000 12896 262000 10192 244500 11232

325000 12480 310000 12480 303000 12272 300000 12480