The following table shows the selling? price, in thousands of? dollars, and the square footage of eight randomly selected houses recently sold by a real estate company. Determine the sample correlation coefficient between a? house's selling price and its square footage.
Selling_Price Square_Footage
259 2,787
193 1,847
258 2,102
168 2,199
240 2,339
240 2,476
287 2,967
260 2,833