The number of houses sold in a suburb in Sydney and the average monthly mortgage rates for 18 months randomly selected are shown in the following table. $$\begin{array} { | c | c | c | c | }
\hline \begin{array} { c }
\text { Mortgage } \
\text { rate (\%) }
\end{array} & \begin{array} { c }
\text { Number of } \
\text { houses sold }
\end{array} & \begin{array} { c }
\text { Mortgage } \
\text { rate (\%) }
\end{array} & \begin{array} { c }
\text { Number of } \
\text { houses sold }
\end{array} \
\hline 7.5 & 90 & 9.5 & 68 \
\hline 9.0 & 72 & 6.5 & 97 \
\hline 7.0 & 89 & 8.0 & 79 \
\hline 10.5 & 62 & 9.0 & 75 \
\hline 10.0 & 58 & 10.5 & 53 \
\hline 9.5 & 70 & 9.5 & 73 \
\hline 8.5 & 74 & 11.0 & 50 \
\hline 10.0 & 65 & 7.5 & 82 \
\hline 11.0 & 51 & 8.5 & 70 \
\hline
\end{array}$$ a. Draw a scatter diagram with the number of houses sold on the vertical axis.
b. Describe the relationship between mortgage rate and number of houses sold.

Question

The number of houses sold in a suburb in Sydney and the average monthly mortgage rates for 18 months randomly selected are shown in the following table. $$\begin{array} { | c | c | c | c | } 
\hline \begin{array} { c } 
\text { Mortgage } \
\text { rate (\%) }
\end{array} & \begin{array} { c } 
\text { Number of } \
\text { houses sold }
\end{array} & \begin{array} { c } 
\text { Mortgage } \
\text { rate (\%) }
\end{array} & \begin{array} { c } 
\text { Number of } \
\text { houses sold }
\end{array} \
\hline 7.5 & 90 & 9.5 & 68 \
\hline 9.0 & 72 & 6.5 & 97 \
\hline 7.0 & 89 & 8.0 & 79 \
\hline 10.5 & 62 & 9.0 & 75 \
\hline 10.0 & 58 & 10.5 & 53 \
\hline 9.5 & 70 & 9.5 & 73 \
\hline 8.5 & 74 & 11.0 & 50 \
\hline 10.0 & 65 & 7.5 & 82 \
\hline 11.0 & 51 & 8.5 & 70 \
\hline
\end{array}$$ a. Draw a scatter diagram with the number of houses sold on the vertical axis.
b. Describe the relationship between mortgage rate and number of houses sold.

Quizplus · Accepted Answer

The Answer of The number of houses sold in a suburb in Sydney and the average monthly mortgage rates for 18 months randomly selected are shown in the following table. $$\begin{array} { | c | c | c | c | } 
\hline \begin{array} { c } 
\text { Mortgage } \
\text { rate (\%) }
\end{array} & \begin{array} { c } 
\text { Number of } \
\text { houses sold }
\end{array} & \begin{array} { c } 
\text { Mortgage } \
\text { rate (\%) }
\end{array} & \begin{array} { c } 
\text { Number of } \
\text { houses sold }
\end{array} \
\hline 7.5 & 90 & 9.5 & 68 \
\hline 9.0 & 72 & 6.5 & 97 \
\hline 7.0 & 89 & 8.0 & 79 \
\hline 10.5 & 62 & 9.0 & 75 \
\hline 10.0 & 58 & 10.5 & 53 \
\hline 9.5 & 70 & 9.5 & 73 \
\hline 8.5 & 74 & 11.0 & 50 \
\hline 10.0 & 65 & 7.5 & 82 \
\hline 11.0 & 51 & 8.5 & 70 \
\hline
\end{array}$$ a. Draw a scatter diagram with the number of houses sold on the vertical axis.
b. Describe the relationship between mortgage rate and number of houses sold.

The Number of Houses Sold in a Suburb in Sydney