Lab $11\mathrm{.}4$

$1.$ Create a graph with controbution margin on the x$-$axis and fraction of time on the y$-$axis. Interpret the graph.

$2.$ Create a graph with total sales revenue on the x$-$axis and fraction of time on the y$-$axis. Interpret the results.

$3.$ What additional charts may be helpful to show the results of the simulation? Support your answer.