From the data given below state which group is more variable, A or \( \mathrm{B} \) ? P \begin{t...

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From the data given below state which group is more variable, A or \( \mathrm{B} \) ?
P
\begin{tabular}{|c|c|c|c|c|c|c|c|}
\hline Marks & \( 10-20 \) & \( 20-30 \) & \( 30-40 \) & \( 40-50 \) & \( 50-60 \) & \( 60-70 \) & \( 70-80 \) \\
\hline Group A & 9 & 17 & 32 & 33 & 40 & 10 & 9 \\
\hline Group B & 10 & 20 & 30 & 25 & 43 & 15 & 7 \\
\hline
\end{tabular}
W.
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