Newspaper sales. The table shows the number of newspapers (in thousands) that sell at a given price (in nickels) per copy for the college newspaper Midstate Oracle at Midstate College.
Price (nickels) | 1 | 2 | 3 | 4 | 5 |
Numbers of newspapers sold (thousands) |
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| 8 | 6 | 4 | 3 |
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a. Use a graphing utility to find the equation of the line of regression relating the variables x (price in nickels) and y (number sold in thousands).
b. Use a graphing utility to plot the points and graph the regression line.
c. Approximately how many papers will be sold if the price per copy is 35.?
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