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Construct Probability Histograms
-Calculate the Mean for the Discrete Probability x271112P(x).2.3.3.2\begin{array} { l | c c c c } \mathrm { x } & 2 & 7 & 11 & 12 \\\hline \mathrm { P } ( \mathrm { x } ) & .2 & .3 & .3 & .2\end{array}

Question 146

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Construct Probability Histograms
-Calculate the mean for the discrete probability distribution shown here.
x271112P(x).2.3.3.2\begin{array} { l | c c c c } \mathrm { x } & 2 & 7 & 11 & 12 \\\hline \mathrm { P } ( \mathrm { x } ) & .2 & .3 & .3 & .2\end{array}

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\[\begin{aligned}
\mu & = \sum...

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