Below You Are Given the Examination Scores of 20 Students $$\begin{array} { l l l l } 52 & 99 & 92 & 86 &84\\93 & 72 & 76 & 95 &88\\92 & 58 & 65 & 79&80 \\90 & 75 & 74 & 56&99\end{array}$$

Essay

Below you are given the examination scores of 20 students.
$$\begin{array} { l l l l } 52 & 99 & 92 & 86 &84\\93 & 72 & 76 & 95 &88\\92 & 58 & 65 & 79&80 \\90 & 75 & 74 & 56&99\end{array}$$
a. Construct a frequency distribution for this data. Let the first class be 50 - 59 and draw a histogram.
b. Construct a cumulative frequency distribution.
c. Construct a relative frequency distribution.
d. Construct a cumulative relative frequency distribution.