The table and scatter plot show the time spent watching TV, x, and the time spent doing homework, y, by each of 9 students last week. The equation of the line of best fit is y=-0.2x+19.62. Time spent watching TV, x (in hours) 6.10 6.60 8.20 10.50 10.50 12.00 13.50 16.60 18.10 Time spent watching TV (in hours) 12.00 Time spent doing homework, y (in hours) 19.60 16.38 21.13 15.63 18.94 13.00 13.40 16.57 17.50 18.10 Observed time spent doing homework (in hours) Time spent doing homework (in hours) 0 32 28- 24- 20- Use the equation of the line of best fit, and use the table above, to fill in the blanks below. Give exact answers, not rounded approximations. X Predicted time spent doing homework (in hours) 0 10 X 12 14 16 Time spent watching TV (in hours) Residual (in hours) 0 0 18 20 22

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter8: Linear Functions
Section8.5: Slope-intercept Form
Problem 9E
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The table and scatter plot show the time spent watching TV, x, and the time spent doing homework, y, by each of 9 students last week.
The equation of the line of best fit is y=-0.2x + 19.62.
Time spent
watching
TV, x
(in hours)
6.10
6.60
8.20
10.50
10.50
12.00
13.50
16.60
18.10
Time spent
watching TV
(in hours)
Time spent
doing
homework, y
(in hours)
12.00
18.10
19.60
16.38
21.13
15.63
18.94
13.00
13.40
16.57
17.50
Observed time spent
doing homework
(in hours)
Time spent doing homework
(in hours)
0
32
28+
24-
20+
16-
12+
8.
4-
0
Predicted time
spent doing
homework
(in hours)
X
200
X
X
xx
Use the equation of the line of best fit, and use the table above, to fill in the blanks below.
Give exact answers, not rounded approximations..
X
X
12
0
0
Time spent watching TV
(in hours)
Residual
(in hours)
X
X
S
14 16
X
18
20
22
x
Transcribed Image Text:The table and scatter plot show the time spent watching TV, x, and the time spent doing homework, y, by each of 9 students last week. The equation of the line of best fit is y=-0.2x + 19.62. Time spent watching TV, x (in hours) 6.10 6.60 8.20 10.50 10.50 12.00 13.50 16.60 18.10 Time spent watching TV (in hours) Time spent doing homework, y (in hours) 12.00 18.10 19.60 16.38 21.13 15.63 18.94 13.00 13.40 16.57 17.50 Observed time spent doing homework (in hours) Time spent doing homework (in hours) 0 32 28+ 24- 20+ 16- 12+ 8. 4- 0 Predicted time spent doing homework (in hours) X 200 X X xx Use the equation of the line of best fit, and use the table above, to fill in the blanks below. Give exact answers, not rounded approximations.. X X 12 0 0 Time spent watching TV (in hours) Residual (in hours) X X S 14 16 X 18 20 22 x
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