QuestionThe accompanying data represent the approximate population, in millions, of the 20 most populous cities in the world. \begin{tabular}{|c|c|c|c|c|} \hline 13.3 & 12.1 & 10.3 & 8.3 & 7.2 \\ \hline 13.1 & 10.8 & 10.2 & 8.2 & 7.1 \\ \hline 12.9 & 10.7 & 8.8 & 8.1 & 6.9 \\ \hline 12.8 & 10.5 & 8.5 & 7.7 & 6.6 \\ \hline \end{tabular}
Use these data to construct a frequency distribution with a first class of $6.5-7.5$. Fill in the missing classes an frequency for each class below. \begin{tabular}{|c|c|} \begin{tabular}{c} Population \\ (millions of people) \end{tabular} & Number of Cities \\ \hline $6.5-7.5$ & $\square$ \\ \hline$\square-\square$ & $\square$ \\ \hline $9-\square-10.8$ & $\square$ \\ \hline $10.9-11.9$ & $\square$ \\ \hline$\square-\square$ & $\square$ \\ \hline \end{tabular}