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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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trancy trancy
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4 years ago

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%
Textbook 
Statistical Reasoning for Everyday Life

Statistical Reasoning for Everyday Life


Edition: 5th
Authors:
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ccnastopoulosccnastopoulos
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4 years ago
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trancy Author
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4 years ago
Thanks
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Correct Slight Smile TY
hannahspillett
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2 hours ago
Just got PERFECT on my quiz
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