File Edit Insert Table Organize Format Arrange View Share Window Help " Q 8. Sat Oct 15 10:56 D QR_8D_Spreadsheet_Practice - Edited QR_BD_Practice -X Climate Change: GI x @ the class life of an . x [Instant Cash Offer X Microsoft W View Insert Table Chart Text Shape Media Collaborate Format Organize d21.lonestar.edu/d21/le/content/1240693/viewContent/20123992/View Preston Curve Data ouTube Maps The Role Of Fathe.. Open QR 8D Spreadsheet Practice , which gives the average annual income and average life expectancy in 25 low-income countries. Each row corresponds to a country. Use technology (spreadsheet regression or the Alcula website given above) to create a scatterplot and regression equation for the Preston curve data. Round all answer values to the nearest ten thousandth (the fourth decimal place). Part A: Slope = Part B: Choose the best interpretation of the slope. Average Income increases 14 cents for every additional year that you live. O Living longer causes you to make more money. . Average Life Expectancy O Making more money causes you to live longer. Average Life Expectancy increases 0.0014 years for every additional dollar of average income. 80 60 Part C: Determine the correlation coefficient. Note that you may have to change your settings if your technology did not already report this value. Correlation coefficient = 40 Part D: The coefficient of determination (R-) is found by squaring the correlation coefficient (r). 20 The coefficient of determination = 0 Part E: Choose the best interpretation of the coefficient of determination 0 5,000 10,000 15,000 20,00 O About 70% of the variation from the predicted value for Average Income is due to changes in Aa MacBook Air