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ahrayia [7]
3 years ago
5

Given the line of the best fit for a set of data points with equation y=-2.5+5x, what is the residual for the point (3,6)

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0
The residual is the difference between the predicted value and the real value. Using the equation, we find for the value of y using the given value of x. 
            
                                y = -2.5 + 5x
                                y = -2.5 + 5(3)
                                  y = 12.5
The difference between this value and the given value of y is 12.5 - 6 = 6.5
Thus, the residual is equal to 6.5.
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