The following data shows the grades that an $8$th grade mathematics class received on a recent exam.

$\{99,94,91,79,88,94,92,93,90,89,77,75,65,90,87,93,92,82,65,60,78\}$

Part A: Determine the best graphical representation to display the data. Explain why the type of graph you chose is an appropriate display for the data. $(6$ points$)$

Part B: Explain, in words, how to create the graphical display you chose in Part A$.$ Be sure to include a title, axis label$($s$),$ scale for axis if needed, and a clear process of how to graph the data. $(6$ points$)$