During a science lab, students heated water, allowed it to cool, and recorded the temperature over time. They computed the difference between the water temperature and the room temperature. The results are in the table.

\begin{array}{|l|l|l|l|l|l|l|}\hline\text { Time (in minutes) }& 10 & 20 & 30 & 40 & 50 & 60 \\\hline\text { Difference in temp. (degrees F) }& 68 & 36 & 20 & 10 & 6 & 4 \\\hline\end{array}

-Researchers investigating the association between the size and strength of muscles measured the forearm circumference (in inches) of 20 teenage boys. Then they measured the strength of the boys' grips (in pounds). Their data are plotted below.

$During a science lab, students heated water, allowed it to cool, and recorded the temperature over time. They computed the difference between the water temperature and the room temperature. The results are in the table. \begin{array}{|l|l|l|l|l|l|l|} \hline\text { Time (in minutes) }& 10 & 20 & 30 & 40 & 50 & 60 \\ \hline\text { Difference in temp. (degrees F) }& 68 & 36 & 20 & 10 & 6 & 4 \\ \hline \end{array} -Researchers investigating the association between the size and strength of muscles measured the forearm circumference (in inches) of 20 teenage boys. Then they measured the strength of the boys' grips (in pounds). Their data are plotted below. a. Write a few sentences describing the association. b. Estimate the correlation. r =_____ c. If the point in the lower right corner (at about 14 and 38 lbs.) were removed, would the correlation become stronger, weaker, or remain about the same? d. If the point in the upper right corner (at about 15 and 75 lbs.) were removed, would the correlation become stronger, weaker, or remain about the same?$
a. Write a few sentences describing the association. b. Estimate the correlation. r =_____
c. If the point in the lower right corner (at about 14" and 38 lbs.) were removed, would the correlation become stronger, weaker, or remain about the same?
d. If the point in the upper right corner (at about 15" and 75 lbs.) were removed, would the correlation become stronger, weaker, or remain about the same?

The Correlation Coefficient Between High School Grade Point Average (GPA)

Multiple Choice

Correct Answer:VerifiedUnlock this answer nowGet Access to more Verified Answers free of chargeAccess For Free

Correct Answer:
Verified
Unlock this answer now
Get Access to more Verified Answers free of charge