College Algebra (MindTap Course List)
12th Edition
ISBN: 9781305652231
Author: R. David Gustafson, Jeff Hughes
Publisher: Cengage Learning
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.arrow_forwardRead the decimal-inch measurement on the vernier height gage in Figure 41-2.arrow_forwardThe following data on sale price, size, and land-to-building ratio for 10 large industrial properties appeared in a paper. Land-to- Sale Price Size (millions (thousands Building of dollars) of sq. ft.) Ratio 10.6 2167 2.6 751 30.6 2423 1.9 225 20.1 3916 7.9 2867 10.2 1698 6.7 1045 5.8 1109 4.6 404 Property 1 2 3 4 5 6 7 8 9 10 2.1 3.4 3.5 4.7 1.6 2.3 3.0 4.8 7.5 17.3 (a) Calculate the value of the correlation coefficient between sale price and size. (Give the answer to three decimal places.) r = (b) Calculate the value of the correlation coefficient between sale price and land-to-building ratio. (Give the answer to three decimal places.) r = (c) If you wanted to predict sale price and you could use either size or land-to-building ratio as the basis for making predictions, which would you use? O Size O Land-to-building ratio (d) Based on your choice in Part (c), find the equation of the least-squares regression line you would use for predicting y = sale price. (Give answers to three…arrow_forward
- The following data on sale price, size, and land-to-building ratio for 10 large industrial properties appeared in a paper. Sale Price Size (millions Property of dollars) of sq. ft.) Land-to- (thousands Building Ratio 1 10.5 2167 2.0 2 2.5 750 3.5 3 30.5 2421 3.5 4 1.8 223 4.7 20.0 3916 1.8 6. 8.0 2865 2.4 7 10.2 1699 3.2 8 6.8 1047 4.9 9. 5.9 1108 7.6 10 4.6 405 17.2 (a) Calculate the value of the correlation coefficient between sale price and size. (Give the answer to three decimal places.) r = 0.702 (b) Calculate the value of the correlation coefficient between sale price and land-to-building ratio. (Give the answer to three decimal places.) r = -0.332 (c) If you wanted to predict sale price and you could use either size or land-to-building ratio as the basis for making predictions, which would you use? Size Land-to-building ratio (d) Based on your choice in Part (c), find the equation of the least-squares regression line you would use for predicting y = sale price. (Give answers to…arrow_forwardThe following data on sale price, size, and land-to-building ratio for 10 large industrial properties appeared in a paper. Property Sale Price(millionsof dollars) Size(thousandsof sq. ft.) Land-to-BuildingRatio 1 10.5 2167 2.1 2 2.6 750 3.4 3 30.6 2421 3.7 4 1.9 223 4.7 5 20.1 3916 1.7 6 8.1 2865 2.3 7 10.2 1699 3.2 8 6.6 1047 4.9 9 5.7 1107 7.5 10 4.4 405 17.3 (a) Calculate the value of the correlation coefficient between sale price and size. (Give the answer to three decimal places.)r = (b) Calculate the value of the correlation coefficient between sale price and land-to-building ratio. (Give the answer to three decimal places.)r = (c) If you wanted to predict sale price and you could use either size or land-to-building ratio as the basis for making predictions, which would you use? 1 - Size 2 - Land-to-building ratio (choose either 1 or 2 as the answer). (d) Based on your choice in Part (c), find the equation of the least-squares…arrow_forwardSurvey was conducted about real estate prices. Data collected is 164350, 254687, 355521, 449174, 574267, 679633, 722906, 863873, 975508, 1011950, 1103350, 1242150, 1385700. What is the interquartile range?arrow_forward
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