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Elden [556K]
3 years ago
9

A set of data points has a line of best fit of y=-0.2x+1.8. What is the residual for the point (5,1)?

Mathematics
2 answers:
Art [367]3 years ago
6 0

Answer:

0.2


Step-by-step explanation:


Grace [21]3 years ago
4 0
Hello!

The residual for the point (5,1) is

To calculate residuals, we need to calculate the value of the line of best fit in the same x coordinate as the point we want to study to know the Predicted-y-value. To do so, we make the substitution of 5 into the equation:

y=-0,2x+1,8 \\ y=-0,2*(5)+1,8=0,8

Now we determine the residual with the following equation:

Residual=yobs-ypred=1-0,8=0,2

Have a nice day!
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