Question2. Consider the following frequency distribution \begin{tabular}{|l|l|l|c|l|l|l|l|} \hline Class & $15-19$ & $20-24$ & $25-29$ & $30-34$ & $35-39$ & $40-44$ & $45-49$ \\ \hline Frequency & 10 & 22 & $f_{1}$ & 40 & $f_{2}$ & 18 & 12 \\ \hline \end{tabular}
The total frequency is 160 and the modal value is 31.0909 . Find; i) The value of $f_{1}$ and $f_{2}$ ii) Mode iii) Median iv) Coefficient of Quartile deviation v) Mean vi) Mean Absolute deviation vii) Standard deviation