Find \( \mu, \sigma_{x}^{2} \) and \( \sigma_{x} \) for each of the...

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Find \( \mu, \sigma_{x}^{2} \) and \( \sigma_{x} \) for each of the following probability distributions :
\begin{tabular}{|r|c|c|c|c|l|}
\hline \( \mathrm{X}: \) & 1 & 2 & 3 & \( -2 \) & \( -1 \) \\
\hline \( \mathrm{P}(\mathrm{X}): \) & \( 0 \cdot 10 \) & \( 0 \cdot 35 \) & \( 0 \cdot 20 \) & \( 0 \cdot 30 \) & \( 0 \cdot 05 \) \\
\hline
\end{tabular}
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