If you do a check (plug in your answer to y) that would be your reason
There are a couple of answers, it could be 2+10 or 3+9
we know that
<u>The correlation coefficient</u> is a number between
and
that represent the linear dependence of two variables or sets of data
Using the function CORREL in a excel tool, calculate the correlation coefficient (r)
see the attached table
the correlation coefficient for the data in the table is equal to 
therefore
<u>the answer is</u>

Answer:
Ask a freaking tutor like it's not that under your answer it will say ask a tutor