Question

The table lists heights (in.) of fathers and the heights (in.) of their first sons.

Height of father (x)	73.0	75.5	75.0	75.0	75.0	74.0	74.0	73.0	73.0	78.5
Height of first son (y)	74.0	73.5	71.0	70.5	72.0	76.5	74.0	71.0	72.0	73.2

1. Find the linear correlation coefficient r
2. Predict the height of a father whose first son measures 77 in. Note that we are looking for the value of x given y = 77.

Answer 1

from above correlation coefficient r=-0.0171

predicted value =75.730+(-0.016)*77=74.498