The marks obtained by 100 students of a class in an examination are given below: \begin{tabular}...

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The marks obtained by 100 students of a class in an examination are given below:
\begin{tabular}{|c|c|}
\hline Marks & Number of students \\
\hline \( 0-5 \) & 2 \\
\hline \( 5-10 \) & 5 \\
\hline \( 10-15 \) & 6 \\
\hline \( 15-20 \) & 8 \\
\hline \( 20-25 \) & 10 \\
\hline \( 25-30 \) & 25 \\
\hline \( 30-35 \) & 20 \\
\hline \( 35-40 \) & 18 \\
\hline \( 40-45 \) & 4 \\
\hline \( 45-50 \) & 2 \\
\hline
\end{tabular}
Draw cumulative frequency curves by using (i) less than series and (ii) more than series.
Hence, find the median.
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