Find the expected value for the random variable. \begin{tabular}{c|ccccc} x & 9 & 12 & 15 & 18 & 21 \\ \hline P(x) & 0.11 & 0.23 & 0.43 & 0.15 & 0.08 \\ \end{tabular} E(x) = \boxed{\text{ (Type an integer or a decimal.) }}
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The values of the random variable are: 9, 12, 15, 18, 21. The corresponding probabilities are: 0.11, 0.23, 0.43, 0.15, 0.08. Show more…
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