PROBLEM 3: An emergency service wishes to see whether there a relationship exists between the outside temperature and the number of emergency calls it receives. The data is shown below.

Temperature x    |     68       65       74       82       80       93       99       105

Number of calls  |      7         6         5         8         7         11       9         15

compute the correlation coefficient r, r2, (show the intermediary steps) and summarize/explain the results.