Consider the “Married Couples’ Heights” scatter diagram presented in “Height Compatibility” on page 612:
a. How can a husband and wife of the same height be located on the given scatter diagram? How many were there? (Determine this answer in two ways: 1—count the points on the scatter diagram; 2— count the ordered pairs in the data set. Explain the discrepancy.)
b. How can husbands who are taller than their wives be located on the scatter diagram? How many were there?
c. How can husbands who are shorter than their wives be located on the scatter diagram? How many were there?
d. Have you accounted for all 87 couples listed in the data? Verify.
e. How does the greatest difference in heights appear on the scatter diagram?