Use tiles to create the $2$ plots in this problem. Let the vector

scores $=[50,68,83,61,70,75,82,57,5,76,85,62,71,96,78,76,68,72,75,83,93]$

represent the distribution of final grades in an engineering course.

$($a$)$ Create a histogram of the scores, using histogram.

$($b$)$ Use the histcounts function to create a vector corresponding to the grade distribution and name the vector grades.

$($c$)$ Create a $3-$D pie chart with emphasis on $\text{'}$A$\text{'}$ grade. Give the title and legend.