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Author Question: Use the following data to a. determine the coefficient of correlation, rounded to the nearest ... (Read 210 times)

swpotter12

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Question 1

Compute r, the correlation coefficient, rounded to the nearest thousandth, for the following data:



◦ 0.75
◦ -0.905
◦ 0.905
◦ -0.75

Question 2

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 = 1.52x - 5.25   c. 10 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


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Marked as best answer by swpotter12 on Feb 2, 2020

scottmt

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swpotter12

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Reply 2 on: Feb 2, 2020
Gracias!


bitingbit

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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