In: Statistics and Probability
Develop an estimated regression equation with annual income and household size as the independent variables. Discuss your findings -
| 
Income ($1000s)  | 
Household Size  | 
Amount Charged ($)  | 
| 54 | 3 | 4,016 | 
| 30 | 2 | 3,159 | 
| 32 | 4 | 5,100 | 
| 50 | 5 | 4,742 | 
| 31 | 2 | 1,864 | 
| 55 | 2 | 4,070 | 
| 37 | 1 | 2,731 | 
| 40 | 2 | 3,348 | 
| 66 | 4 | 4,764 | 
| 51 | 3 | 4,110 | 
| 25 | 3 | 4,208 | 
| 48 | 4 | 4,219 | 
| 27 | 1 | 2,477 | 
| 33 | 2 | 2,514 | 
| 65 | 3 | 4,214 | 
| 63 | 4 | 4,965 | 
| 42 | 6 | 4,412 | 
| 21 | 2 | 2,448 | 
| 44 | 1 | 2,995 | 
| 37 | 5 | 4,171 | 
| 62 | 6 | 5,678 | 
| 21 | 3 | 3,623 | 
| 55 | 7 | 5,301 | 
| 42 | 2 | 3,020 | 
| 41 | 7 | 4,828 | 
| 54 | 6 | 5,573 | 
| 30 | 1 | 2,583 | 
| 48 | 2 | 3,866 | 
| 34 | 5 | 3,586 | 
| 67 | 4 | 5,037 | 
| 50 | 2 | 3,605 | 
| 67 | 5 | 5,345 | 
| 55 | 6 | 5,370 | 
| 52 | 2 | 3,890 | 
| 62 | 3 | 4,705 | 
| 64 | 2 | 4,157 | 
| 22 | 3 | 3,579 | 
| 29 | 4 | 3,890 | 
| 39 | 2 | 2,972 | 
| 35 | 1 | 3,121 | 
| 39 | 4 | 4,183 | 
| 54 | 3 | 3,730 | 
| 23 | 6 | 4,127 | 
| 27 | 2 | 2,921 | 
| 26 | 7 | 4,603 | 
| 61 | 2 | 4,273 | 
| 30 | 2 | 3,067 | 
| 22 | 4 | 3,074 | 
| 46 | 5 | 4,820 | 
| 66 | 4 | 5,149 |