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Author Question: Based on the following scatter plot of age versus blood pressure, which of the regression ... (Read 18 times)

jacob816

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Question 1

Assume a least-squares regression line is found to bey= –5.73 + 0.282x. The coefficient of determination for these data is 0.64. What is the correlation coefficient?

0.411


–0.64


0.80


–0.80



Question 2

Based on the following scatter plot of age versus blood pressure, which of the regression assumptions may be violated?



Mean error = 0.


Error variance is constant.


Errors are normally distributed.


Errors are independent.



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Marked as best answer by jacob816 on Feb 26, 2023

queenBea90

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jacob816

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Reply 2 on: Feb 26, 2023
Excellent


CAPTAINAMERICA

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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