Find the correlation coefficient, r, of the data described below.
Porter keeps detailed information about his model airplane collection. The data includes not only the characteristics of each model, but also the time it took to assemble it. He is thinking of buying a new model airplane and decided to look at this information to understand how long assembly might take.
From his data, Porter found the number of pieces in each model, x, and how many minutes each took to assemble, y.
Pieces Assembly time
77 53
80 38
83 52
88 73
90 60
Round your answer to the nearest thousandth.
r=