SOLUTION
A relative frequency is the ratio (fraction or proportion) of the number of times a value of the data occurs in the set of all outcomes to the total number of outcomes.
From the graph, the total frequency is
[tex]\begin{gathered} 67-74=5 \\ 74-82=5 \\ 83-90=7 \\ 91-98=3 \\ 99-106=2 \\ sum\text{ of frequency =5+5+7+3+2=22} \end{gathered}[/tex]
Hence
The relative frequenc for 75-82 is
[tex]\begin{gathered} \frac{Frequency\text{ of 75-82}}{total\text{ frequency}} \\ \\ \frac{5}{22}=0.2273 \end{gathered}[/tex]
Therefore
The relative frequenc for 75-82 is 0.2273
The relative frequency for the interval of the score 83-98 is
[tex]\begin{gathered} \frac{sum\text{ of frequency betw}een\text{ 83-98}}{total\text{ frequency}} \\ \\ \frac{7+3}{22}=\frac{10}{22}=0.4545 \end{gathered}[/tex]
