2 years ago

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:

$R=yo-yp$

Where $R$ 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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