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Use the following data to a. determine the coefficient of correlation, rounded to the nearest thousandth, $b$. find the equation of the regression line for time watching TV and time on the Internet, c. approximate how much time on the Internet can we predict for a person who spends 10 hours weekly watching TV. a. $r=−0.752$ b. $y=−1.52x+5.25$ c. 9.9 hours a. $r=−0.752$ b. $y=5.25x+1.52$ c. 54 hours a. $r=0.752$ b. $y=1.52x+5.25$ c. 20.5 hours a. $r=0.752$ b. $y=1.52x−5.25$ c. 10 hours

From the given data. we know that,

a) correlation coefficient r:

X Values Mean Y Values Mean X and Y Combined R Calculation

By using the formula,

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