Which of the following equations is the equation of a suitable line of best fit for the data given below?

{(45, 18), (62, 13), (72, 11), (55, 15), (38, 21), (26, 31), (93, 9), (64, 13), (29, 28), (33, 25), (49, 17)}
A.
y = 3x + 35
B.
y = –10x + 35
C.
2003-13-02-00-00_files/i0240002.jpg
D.
2003-13-02-00-00_files/i0240003.jpg

Question

Which of the following equations is the equation of a suitable line of best fit for the data given below?

{(45, 18), (62, 13), (72, 11), (55, 15), (38, 21), (26, 31), (93, 9), (64, 13), (29, 28), (33, 25), (49, 17)}
A.
y = 3x + 35
B.
y = –10x + 35
C.
2003-13-02-00-00_files/i0240002.jpg
D.
2003-13-02-00-00_files/i0240003.jpg

ranga · Answer

If your calculator does statistical calculations, plug the (x,y) pairs and it will given you the equation of the regression line.  If not there are online regression calculators available.

anonymous · Answer

would it be A

ranga · Answer

I have to plug the numbers into an online calculator and see if it is correct.

anonymous · Answer

okay

ranga · Answer

y = -0.33x + 35.2 is what the online calculator is telling me.

anonymous · Answer

alright thanks

ranga · Answer

Is that one of the answer choices?

anonymous · Answer

no.