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Compute the Variance and Standard Deviation of a Discrete Random x01234P(x)0.020.070.220.270.42\begin{array}{|c|c|c|c|c|c|}\hline x & 0 & 1 & 2 & 3 & 4 \\\hline P(x) & 0.02 & 0.07 & 0.22 & 0.27 & 0.42 \\\hline\end{array}

question 134

Multiple Choice

Compute the Variance and Standard Deviation of a Discrete Random Variable
-A baseball player is asked to swing at pitches in sets of four. The player swings at 100 sets of 4 pitches. The probability distribution for hitting a particular number of pitches is given below. Determine the standard deviation for this discrete probability distribution. x01234P(x) 0.020.070.220.270.42\begin{array}{|c|c|c|c|c|c|}\hline x & 0 & 1 & 2 & 3 & 4 \\\hline P(x) & 0.02 & 0.07 & 0.22 & 0.27 & 0.42 \\\hline\end{array}


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