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Whitepunk [10]
2 years ago
15

A set of data points has a line of best fit of y=2.5x-1.5

Mathematics
2 answers:
tamaranim1 [39]2 years ago
8 0

Answer:

-1.5

Step-by-step explanation:

   

castortr0y [4]2 years ago
7 0

To solve this problem you must apply the proccedure shown below:

1- You must apply the following formula:

R=yo-yp

WhereR is the residual, yo is the observed value y and yp is the predicted value y.

2- You only need to substitute the x=5 into the equation y=2.5x-1.5 and then, you must apply the formula for calculate the residual:

y=2.5(5)-1.5\\ y=11

R=12-11\\ R=1

The answer is: The residual is 1

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