5. The data below are the heights of mothers (x values) and their corresponding daughters (y values).

x
y
63
59
67
65
64
65
60
61
65
65
67
67
59
61
60
63
58
60
72
71
63
62

a. Calculate the correlation coefficient of the data.

b. Based on the correlation coefficient, is there a correlation between the heights of daughters and mothers? Explain your answer.