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College Algebra in Context with Applications for the Managerial, Life, and Social Sciences 3rd Edition by Ronald J Harshbarger, Lisa Yocco
Edition 3ISBN: 032157060XCollege Algebra in Context with Applications for the Managerial, Life, and Social Sciences 3rd Edition by Ronald J Harshbarger, Lisa Yocco
Edition 3ISBN: 032157060X
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Consider the table. The table represents the prison time by multiplying the probabilities of being arrested.
| Year x | Expected prison time (days) y |
| 1970 | 10.1 |
| 1980 | 10.6 |
| 1985 | 13.2 |
| 1990 | 18.0 |
| 1992 | 18.5 |
| 1993 | 17.2 |
| 1994 | 19.5 |
| 1995 | 20.2 |
| 1996 | 21.7 |
(a)
Let
represents the 1960, 
represents 1970and so on.
To find the linear model enter the data in graphing calculator as follows.
Use TI – 84 graphing calculator to find the linear regression curve.
Enter the table of values first.
Step 1: First press
and select the
option by pressing 1 from the displayed menu.
Next, enter the each value in L1 followed by pressing the enter key and enter the corresponding x value in L2 followed by pressing the enter key.
The output will be displayed as shown:
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