AnswersEAP-Algebra Functions and Data Analysis A CRLinear Regression Methods

Linear Regression Methods Answers

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1
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The slope of the line is , which means you can predict if there is .

A
0.13
B
1.37
C
1.50
D
1.63
2
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The slope of the line is , which means you can predict if there is .

A
1 more work hour
B
1 more inch of rain
C
1.5 more work hours
D
1.5 more inches of rain
3

The slope of the line is , which means you can predict if there is .

A
1 more work hour
B
1 more inch of rain
C
1.5 more work hours
D
1.5 more inches of rain
4

Which is a valid step in the median-fit method?

A
calculating the slope using the left and middle summary points
B
determining the mean of the x-values and the mean of the y-values
C
finding the three y-intercepts of the summary points using the slope
D
using the largest value of the three y-intercepts to write the equation for the line
5

y = x +

A
7.453
B
9.423
C
13.294
6

Which is found in the last step of the least-squares method?

A
the slope
B
and
C
the y-intercept
D
xy for each point in the set
7

y = x +

A
0.27
B
4.73
C
7.63
8

y = x +

A
–240.33
B
22.90
C
150.74
9

y = x +

A
-0.2
B
21.4
C
54.3

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