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Consider the graph of the line of best fit, y = 0.5x + 1, and the given data points.

Which is the residual value when x = 2?


A.–2

B.–1

C.1

D.2

Consider the graph of the line of best fit, y = 0.5x + 1, and the given data points-example-1
User Whisher
by
8.2k points

1 Answer

5 votes

The residual value is the vertical distance between the observed value and the predicted value. In other words,

residual value = point in scatter plot - point in the line of best fit

When
x=2, the corresponding scatter plot point is at
y=1 and the corresponding point in the line of best fit is
y=2 [can be seen from the graph]

Hence,

residual value =
1-2=-1. Answer choice B is correct.


ANSWER: B

User Mike Dewar
by
8.7k points

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