The Scores Below Are from the Same Final Exam Given $\text { This year }$

Essay

The scores below are from the same final exam given in a math class in two different years.Compute the mean and median (if necessary)and the range and standard deviation of these scores.Using these statistics,describe the differences in the two sets of scores.
$\text { This year }$
$\begin{array}{|l|l|l|l|l|}\hline 35 \quad\quad\quad& 45 & 65 & 75 & 87 \\\hline 80 & 169 & 71 & 53 & 90 \\\hline 99 & 95 & 70 & 82 & 73 \\\hline 93 & 67 & 61 & 57 & 74 \\\hline 72 & 77 & 71 & 81 & 83 \\\hline\\\hline\end{array}$

$\text { Ten years }$
$\text { ago }$
$\begin{array}{|l|l|l|l|l|}\hline 56 \quad\quad\quad& 77 & 75 & 76 & 59 \\\hline 74 & 51 & 89 & 55 & 79 \\\hline 67 & 77 & 69 & 90 & 68 \\\hline 90 & 65 & 79 & 69 & 79 \\\hline 87 & 186 & 98 & 91 & 95 \\\hline\\\hline\end{array}$