For the regression line y = -3.24x + 7.51 which of the following are true? There...
For the regression line y = -3.24x + 7.51 which of the following are true?
There may be more than one answer.
| a. |
The regression line is rising from left to right. |
|
| b. |
The y-intercept of the line is negative. |
|
| c. |
The dots on the scatterplot are probably rising from left to right. |
|
| d. |
The dots on the scatterplot are probably falling from left to right. |
|
| e. |
The regression line is falling from left to right. |
|
| f. |
The y-intercept of the line is 0. |
|
| g. |
The relationship between x and y is not linear. |
|
| h. |
The y-intercept of the line is positive. |
Homework Answers
The correct descriptions will be:
The dots on the scatterplot are probably falling from left to right.
The regression line is falling from left to right.
The y-intercept of the line is positive.
Option d, e and h are correct.
Add Answer to:
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An article gave a scatter plot
along with the least squares line of x = rainfall volume
(m3) and y = runoff volume (m3) for
a particular location. The accompanying values were read from the
plot.
x
5
12
14
20
23
30
40
51
55
67
72
85
96
112
127
y
4
10
13
15
15
25
27
45
38
46
53
75
82
99
103
(a) Does a scatter plot of the data support the use of...
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An article gave a scatter plot
along with the least squares line of x = rainfall volume
(m3) and y = runoff volume (m3) for
a particular location. The accompanying values were read from the
plot.
x
5
12
14
20
23
30
40
51
55
67
72
85
96
112
127
y
4
10
13
15
15
25
27
45
38
46
53
75
82
99
103
(a) Does a scatter plot of the data support the use of...
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