Find the value of the linear correlation coefficient r.
-Based on the data from six students, the regression equation relating number of hours of preparation (x)and test score $( \mathrm { y } )$ is $y = 67.3 + 1.07 x$. The same data yield $r = 0.224$ and $\bar{y} = 75.2$. What is the best predicted test score for a student who spent 2 hours preparing for the test?
A)69.4
B)78.1
C)75.2
D)59.7

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The Answer of Find the value of the linear correlation coefficient r.
-Based on the data from six students, the regression equation relating number of hours of preparation (x)and test score $( \mathrm { y } )$ is $y = 67.3 + 1.07 x$. The same data yield $r = 0.224$ and $\bar{y} = 75.2$. What is the best predicted test score for a student who spent 2 hours preparing for the test?
A)69.4
B)78.1
C)75.2
D)59.7

Find the Value of the Linear Correlation Coefficient R (y)( \mathrm { y } )(y)

Find the Value of the Linear Correlation Coefficient R $( \mathrm { y } )$