Use the regression capabilities of a graphing calculator to complete Exercises 28
Patent applications: Every year the U.S. Patent and Trademark Office (USPTO) receives thousands of applications from scientists and inventors. The table given shows the number of applications received for the odd years from 1993 to 2003 (1990 → 0). Use the data to (a) draw the scatterplot; (b) determine whether the association is linear or nonlinear; (c) determine whether the association is positive or negative; and (d) find the regression equation and use it to predict the number of applications that will be received in 2011.
Source:United States Patent and Trademark Office at www.uspto.gov/web
Year (1990→0) | Applications (1000s) |
3 | 188.0 |
5 | 236.7 |
7 | 237.0 |
9 | 278.3 |
11 | 344.7 |
13 | 355.4 |
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