Question

Which equation of the least squares regression line most closely matches the data set?

A.yˆ=1.13x−14.69

B.yˆ=0.32x−5.89

C.yˆ=0.59x+3.29

D. yˆ=3.1x+18.6

I'm sorry my picture won't load. If you can help though, it would be nice

Answer 1

Sorry im late... But for future people... If you table looks like mine (as shown in picture)Your answer is D.Hope this helps!CTPehrson

Answer 2

D. y =3.1x+18.6

Explanation:

From the table given we find that

there is a constant 2 units increase in x.

Corresponding increase in y are 8,6,5,5

Hence slope would be between 2.5 and 4

Out of the 4 options first three options have slope as <2.

Hence these will not be repaid

Option D has slope between 2.5 and 4.

Hence this would be the appropriate regression line.

D. y =3.1x+18.6