Analyzing Residuals Answers
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Consider the graph of the line of best fit, y = 0.5x + 1, and the given data points.
A
–2B
–1C
1D
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What does a residual value of –0.8 mean in reference to the line of best fit?
A
The given point is 0.8 units above the line of best fit.B
The given point is 0.8 units below the line of best fit.C
The line of best fit is not appropriate to the data.D
The line of best fit has a slope of 0.8.3
Shanti wrote the predicted values for a data set using the line of best fit y = 2.55x – 3.15. She computed two of the residual values.
A
a = 0.4 and b = –0.15B
a = –0.4 and b = 0.15C
a = 8.6 and b = 14.25D
a = –8.6 and b = –14.254
Consider the plot created from the residuals of a line of best fit for a set of data.
A
Yes, the points have no pattern.B
Yes, the points are evenly distributed about the x-axis.C
No, the points are in a linear pattern.D
No, the points are in a curved pattern.5
Consider the table showing the given, predicted and residual values for a data set.
A
(1, –2.2)B
(2, 1.5)C
(3, 3.7)D
(4, 0.1)Did you find these answers helpful?
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