The Data Below Are the Ages and Systolic Blood Pressures

question 87

Multiple Choice

The data below are the ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults. Calculate the correlation coefficient, r. $$\begin{array} { l | c | c | c | c | c | c | c | c | c | } \text { Age, } \mathrm { x } & 33 & 36 & 40 & 43 & 46 & 48 & 52 & 56 & 60 \\\hline \text { Pressure, } \mathrm { y } & 112 & 116 & 119 & 127 & 138 & 141 & 144 & 146 & 148\end{array}$$

• A)0.960
• B)0.998
• C)0.890
• D)0.908

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