Using your intuition, classify each (x, y)pair as having a weak correlation (0 < r <0.5), a moderate correlation (0.8 < r < 1.0). (See the pairs listed in Exercise 1 on page 497).

1. Use technology to find the correlation coefficient for each pair in Exercise 1. Compare your resultswith those obtained by intuition.
2. Use technology to find the regression line for each pair in Exercise 1 that has a strong correction.
3. Use the results of number 3 to predict the following:(a) The hip circumference of a man whose chest circumference is 95 centimeters. (b)The height of a man whose forearm circumference is 28 centimeters.
4. Are there pairs of measurements that have stronger correlation coefficients than 0.85? Use technology and intuition to reach a conclusion.