12. Gas Tax and Fuel Use The gas tax and fuel use are shown. Tax 21.5 23 Usage 1062 631 Find y' when x = $0.25. 18 24.5 26.4 19 920 686 736 684

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Graph each scatter plot. Find r, the equation of the regression line, and make a prediction for the
of x that is given.
For Exercises 12 through 27, use the same data as for
the corresponding exercises in Section 10-1. For each
exercise, find the equation of the regression line and find
the y' value for the specified x value. Remember that no
regression should be done when r is not significant.
12. Gas Tax and Fuel Use The gas tax and fuel use are
shown.
Tax
21.5 23
Usage
1062 631
Find y' when x = $0.25.
13. Commercial Movie Releases New movie releases per
studio and gross receipts are as follows:
18 24.5 26.4 19
920 686 736 684
No. of releases 361 270 306 22 35 10 8 12 21
Gross receipts
(million S)
3844 1962 1371 1064 334 241 188 154 125
Find y' when x = 200 new releases.
14. Forest Fires and Acres Burned Number of fires and
number of acres burned are as follows:
Fires x
72 69 58 47
Acres y
62 41 19 26
Find y' when x = 60.;
15. Years and contribution data are as follows:
Years x
1
5
3
Contribution y, S
500
100
300
Find y' when x = 4 years.
84
51
62 57 45
15 30 15
10 7 6
50 75 80
Transcribed Image Text:Graph each scatter plot. Find r, the equation of the regression line, and make a prediction for the of x that is given. For Exercises 12 through 27, use the same data as for the corresponding exercises in Section 10-1. For each exercise, find the equation of the regression line and find the y' value for the specified x value. Remember that no regression should be done when r is not significant. 12. Gas Tax and Fuel Use The gas tax and fuel use are shown. Tax 21.5 23 Usage 1062 631 Find y' when x = $0.25. 13. Commercial Movie Releases New movie releases per studio and gross receipts are as follows: 18 24.5 26.4 19 920 686 736 684 No. of releases 361 270 306 22 35 10 8 12 21 Gross receipts (million S) 3844 1962 1371 1064 334 241 188 154 125 Find y' when x = 200 new releases. 14. Forest Fires and Acres Burned Number of fires and number of acres burned are as follows: Fires x 72 69 58 47 Acres y 62 41 19 26 Find y' when x = 60.; 15. Years and contribution data are as follows: Years x 1 5 3 Contribution y, S 500 100 300 Find y' when x = 4 years. 84 51 62 57 45 15 30 15 10 7 6 50 75 80
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