Question: Given below is the information obtained in a study on age and systolic blood pressure of 6 randomly selected persons

X = age in years, y: blood pressure, n = 6

Sigma x = 345, sigma y = 819, sigma x² = 20,399, sigma y² = 112,343, and sigma xy = 47,634

a. Compute the value of correlation coefficient, r.

b. Compute the linear regression equation of y on x.

c. Using the regression equation found in part (b), predict the blood pressure of a 60 year old person