If the mean of given data is 50 , find the value of \( p \). PI \begin{tabular}{c|c|c|c|c|c} \hl...

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If the mean of given data is 50 , find the value of \( p \).
PI
\begin{tabular}{c|c|c|c|c|c}
\hline Class interval & \( 0-20 \) & \( 20-40 \) & \( 40-60 \) & \( 60-80 \) & \( 80-100 \) \\
\hline Frequency & 17 & 28 & 32 & \( p \) & 19 \\
\hline
\end{tabular}
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