Find the correlation coefficient, r, of the data described below.

Question

The manager at a new bank wants to hire enough tellers to ensure no customer waits in line too long. To gather more information, he waits in line at other local banks.
At each bank the manager notes the number of teller windows that are open, x, as well as the number of minutes he has to wait in line before being served, y.
Number of teller windows open Time spent waiting in line (in minutes)
1 13
2 4
5 8
5 8
7 10
Round your answer to the nearest thousandth.
r=

Answer 1

-0.305