Estimate the mean using a grouped frequency table.
\( \begin{array}{l} \text{Estimate the mean using the table:} \\ \begin{array}{|c|c|} \hline \text{Interval} & \text{Frequency} \\ \hline 0--2 & 1 \\ 2--4 & 3 \\ 4--6 & 6 \\ \hline \end{array} \end{array} \)
Choose one option:
Check each calculation carefully to get the correct mean.
Use class midpoints, multiply by frequency, sum, divide by total frequency.
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