As with Many Other Construction Materials, the Price of Gravel

question 11

Multiple Choice

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.

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Definitions:

Flexion

Bending.

Extension

The movement increasing the angle between body parts, opposite to flexion.

Skeletal Muscle

A type of muscle tissue that's controlled voluntarily, supports skeletal movements, and is distinguished by its striated appearance.

Skeletal Muscle

A type of striated muscle tissue which is attached to bones and is responsible for initiating and controlling voluntary movements.