The following table gives the ages and blood pressure of 9 women. Age (X) : 56 42 36 47 49 42 60 72 63 Blood Pressure(Y) 147 125 118 128 145 140 155 160 149 Find the correlation coefficient between X and Y. (i) Determine the least square regression equation of Y on X. (ii) Estimate the blood pressure of a woman whose age is 45 years.

The following table gives the ages and blood pressure of 9 women. Age (X) : 56 42 36 47 49 42 60 72 63 Blood Pressure(Y) 147 125 118 128 145 140 155 160 149 Find the correlation coefficient between X and Y. (i) Determine the least square regression equation of Y on X. (ii) Estimate the blood pressure of a woman whose age is 45 years.

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.3: Least Squares Approximation

Problem 31EQ

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