As with many other construction materials, the price of gravel (per ton) depends on the quantity of material ordered. The following table presents the unit cost (dollars/ton) for gravel for various order sizes (in tons)
$\begin{array} { c c }
\hline \text { Tons of Gravel } & \text { Unit Cost (dollars/ton) } \
\hline 10 & 29.59 \
20 & 21.76 \
30 & 20.79 \
40 & 18.32 \
50 & 17.56 \
60 & 16.86 \
70 & 16.44 \
80 & 16.15 \
90 & 15.68 \
\hline
\end{array}$
Which of the following graphs is the correct residual plot for the data set? (Hint: create your own)
residual plot and compare it to those shown below.

Question

As with many other construction materials, the price of gravel (per ton) depends on the quantity of material ordered. The following table presents the unit cost (dollars/ton) for gravel for various order sizes (in tons)
 $\begin{array} { c c } 
\hline \text { Tons of Gravel } & \text { Unit Cost (dollars/ton) } \
\hline 10 & 29.59 \
20 & 21.76 \
30 & 20.79 \
40 & 18.32 \
50 & 17.56 \
60 & 16.86 \
70 & 16.44 \
80 & 16.15 \
90 & 15.68 \
\hline
\end{array}$ 
Which of the following graphs is the correct residual plot for the data set? (Hint: create your own)
residual plot and compare it to those shown below.

Quizplus · Accepted Answer

The Answer of As with many other construction materials, the price of gravel (per ton) depends on the quantity of material ordered. The following table presents the unit cost (dollars/ton) for gravel for various order sizes (in tons)
 $\begin{array} { c c } 
\hline \text { Tons of Gravel } & \text { Unit Cost (dollars/ton) } \
\hline 10 & 29.59 \
20 & 21.76 \
30 & 20.79 \
40 & 18.32 \
50 & 17.56 \
60 & 16.86 \
70 & 16.44 \
80 & 16.15 \
90 & 15.68 \
\hline
\end{array}$ 
Which of the following graphs is the correct residual plot for the data set? (Hint: create your own)
residual plot and compare it to those shown below.

As with Many Other Construction Materials, the Price of Gravel