Problem 1

Abdominal fat is dangerous for women (and men). It has been linked to heart disease. The data below lists waist measurements for women and their overall cholesterol level. Use the data below to find the correlation coefficient r for a linear relationship between waist circumference in woman and their cholesterol level.
Waist       67.2   82.5   66.7   93   82.6   75.4   73.6   81.4   99.4   67.7   100.7   99.3   85.7   85.7
Cholest.   264   181    267   384   98      62     126      89      531   130     175      280   149    112