The Frequency Distribution Below Was Constructed from Data Collected from a Group

The frequency distribution below was constructed from data collected from a group of 25 students.
$\begin{array}{cc}\text { Height }\\\text { in Inches) }&\text { Frequency }\\58-63 & 3 \\64-69 & 5 \\70-75 & 2 \\76-81 & 6 \\82-87 & 4 \\88-93 & 3 \\94-99 & 2\end{array}$
a. Construct a relative frequency distribution.
b. Construct a cumulative frequency distribution.
c. Construct a cumulative relative frequency distribution.