Solve the problem. Round your answers to the nearest whole ...

[serike]

Question 1

Solve the problem. Round your answers to the nearest whole percent.



The scatter diagram shows the data for the prices of a stock (y) and U.S. employment (x).  The correlation coefficient r is 0.8.  Determine how much of the variation in the stock price can be accounted for by the best-fit line.
◦ 64%
◦ 20%
◦ 80%
◦ 36%

Question 2

Solve the problem. Round your answers to the nearest whole percent.



The scatter diagram shows the data for the number of cars waiting by a school (y) and the amount of time after the end of classes (x).  The correlation coefficient r is -0.55.   Determine how much of the variation in the  number of waiting cars can be accounted for by the best-fit line.
◦ 30%
◦ 45%
◦ 70%
◦ 20%

[irishcancer18]

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[serike]

Excellent

[gcook]

Thanks for the timely response, appreciate it