The table contains the weights (in pounds)and heights (in inches)of 9 randomly selected adults. Estimate or compute the correlation coefficient. $$\begin{array} { c c }
\hline \text { Weight (lb) }&\text {Height (in.) } \
\hline 150 & 72 \
135 & 68 \
145 & 68 \
145 & 65 \
125 & 60 \
130 & 62 \
128 & 70 \
130 & 65 \
155 & 75 \
\hline
\end{array}$$
A)0.54
B)-0.73
C)-0.54
D)0.73

Question

The table contains the weights (in pounds)and heights (in inches)of 9 randomly selected adults. Estimate or compute the correlation coefficient. $$\begin{array} { c c } 
\hline \text { Weight (lb) }&\text {Height (in.) } \ 
\hline 150 & 72 \
135 & 68 \
145 & 68 \
145 & 65 \
125 & 60 \
130 & 62 \
128 & 70 \
130 & 65 \
155 & 75 \
\hline
\end{array}$$
A)0.54
B)-0.73
C)-0.54
D)0.73

Quizplus · Accepted Answer

The correlation coefficient is a measure of the strength and direction of the linear relationship between two variables. It can take on values between -1 and 1, where -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation.In this case, the correlation coefficient between weight and height is 0.73, which indicates a strong positive correlation. This means that as weight increases, height also tends to increase.

The Table Contains the Weights (In Pounds)and Heights (In Inches)of