A health clinic counted the number of breaths per minute (r) and the number of pulse beats (p) per minute for 10 people doing various activities. The data are shown in the table. The data are coded such that x=10 and y = P-50 2 * 35 5 7 8 9 9 10 12 13 y 4 9 10 11 17 15 17 19 22 27 (You may use Tx - 81 ' - 747 y - 151 2695 1413.) a Calculate S, and S b Find the equation of the regression line of y on x in the form y = a + bx. e Find the equation of the regression line for p on 7. Estimate the number of pulse beats per minute for someone who is taking 22 breaths per minute. e Comment on the reliability of your answer to e.

AppendixLO1