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Han creates a scatter plot that displays the relationship between the number of items sold,
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The line of best fit for a data set is
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Plots of the residuals for four different models of the same data set are displayed. Which of the following represents the plot of the residuals from a model that fits its data best?
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A local car salesperson created a scatter plot to display the relationship between a car’s sale price in dollars,
The car salesperson looks at the residuals for the car sales.
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Technology required.
Each day, data about the outside temperature and gas used for heating a building are collected. The information is given in the table.
| temperature (degrees Fahrenheit) |
gas usage (therms) |
|---|---|
| 58 | 5,686 |
| 62 | 7,373 |
| 64 | 5,805 |
| 67 | 5,636 |
| 70 | 3,782 |
| 73 | 3,976 |
| 74 | 3,351 |
| 74 | 3,396 |
| 75 | 2,936 |
| 73 | 3,078 |
| 65 | 4,549 |
| 59 | 7,022 |
| 58 | 6,106 |
| 62 | 4,566 |
| 64 | 4,608 |
| 67 | 5,790 |
| 70 | 6,501 |
| 73 | 3,843 |
Use a graphing calculator to create the line of best fit for the data.
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