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3 years ago

Given the line of best fit for a data set of data points with the equation y=5x-2.5,what is the residual for the point (4,13)

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

7 0

Answer:

-4.5

Step-by-step explanation:

The predicted value from the model is calculated by substituting x with 4 in the regression equation;

y = 5(4) - 2.5

y = 17.5

The actual value when x is 4 is given as 13. The residual is simply the difference between the actual and the predicted value;

residual = actual value - predicted value

residual = 13 - 17.5

residual = -4.5

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