Question + info: http://i.imgur.com/iyBWi2i.png

In question 3, the correlation coefficient I get is the exact same as in question 2... Therefore no improvement at all, what gives?

For question 3, I just calculated sale price/sq foot and then took natural log (ln) for each value.

So, for the first value, I did 42000/5850 to get sale price/sq foot and then took the ln of 42000/5850, and so on for the remaining values.

Then I proceeded to calculate the correlation coefficient, getting the exact same answer as in question 2.

Thanks for reading.