Problem? 8 CQQ The exercises are based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD). S y s t o l i c D i a s t o l i c If each systolic reading is exactly twice the diastolic reading, what is the value of the linear correlation coefficient r ? ??

Solution 8 CQQ Step 1 : The given data is based on the second year medical students who took blood pressure measurements of the same person We have to find the value of correlation coefficient if the systolic reading is twice as that of the diastolic reading The recordings are shown in the below table Systolic 164 182 200 200 160 =x Diastoli 82 91 100 100 80 c = y 165 200 2000 1280 xy 13448 62 00 0 0