Draw a cumulative frequency curve for the following data: \begin{tabular}{|l|c|c|c|c|c|} \hline ...

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Draw a cumulative frequency curve for the following data:
\begin{tabular}{|l|c|c|c|c|c|}
\hline Marks obtained & \( 0-10 \) & \( 10-20 \) & \( 20-30 \) & \( 30-40 \) & \( 40-50 \) \\
\hline No. of students & 8 & 10 & 22 & 40 & 20 \\
\hline
\end{tabular}
Hence, determine the pass marks if \( 85 \% \) of the students pass.
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