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The standard deviation of the following distribution is
$\begin{array}{|l|c|c|c|c|}
\hline \begin{array}{l}
\text { Class interval } \\
\end{array} & 0-10 & 10-20 & 20-30 & 30-40 \\
\hline \begin{array}{l}
\text { Frequency } \\
\end{array} & 1 & 3 & 4 & 2 \\
\hline
\end{array}$
Options:
$\begin{array}{|l|c|c|c|c|}
\hline \begin{array}{l}
\text { Class interval } \\
\end{array} & 0-10 & 10-20 & 20-30 & 30-40 \\
\hline \begin{array}{l}
\text { Frequency } \\
\end{array} & 1 & 3 & 4 & 2 \\
\hline
\end{array}$
Solution:
1502 Upvotes
Verified Answer
The correct answer is:
9
No solution. Refer to answer key.
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