A set of data points has an equation of = -1.5 + 2.5x.

What is the residual for the point (5, 12)?
A. 1
B. -1
C. 11
D. 12

Question

A set of data points has an equation of  = -1.5 + 2.5x.

What is the residual for the point (5, 12)?
 		A.	1
 		B.	-1
 		C.	11
 		D.	12

jim_thompson5910 · Answer

when you plug x = 5 into -1.5 + 2.5x, what do you get?

anonymous · Answer

@jim_thompson5910  When i id it befor it didnt work and said it was wrong

anonymous · Answer

did*

jim_thompson5910 · Answer

what result did you get

anonymous · Answer

11

anonymous · Answer

C

jim_thompson5910 · Answer

the point given is (5,12)

the observed y value is 12

the predicted y value you got is y-hat = 11

jim_thompson5910 · Answer

$$\LARGE \text{residual} = (\text{observed y}) - (\text{predicted y})$$

$$\LARGE \text{residual} = (y) - (\hat{y})$$

$$\LARGE \text{residual} = (12) - (11)$$

I'm sure you see how to finish up here

anonymous · Answer

So it is 1

anonymous · Answer

the Large text is weird looking

jim_thompson5910 · Answer

yes the difference between what reality is and what the predicted value is

jim_thompson5910 · Answer

sorry I probably went too big lol

anonymous · Answer

it is ok =3