Question
Find the expected value for each random variable.$$\begin{array}{|c|cccc|} \hline {x} & {30} & {32} & {36} & {38} & {44} \\ \hline {P(x)} & {0.31} & {0.29} & {0.26} & {0.09} & {0.05} \\ \hline \end{array}$$
Step 1
Step 1: The expected value of a random variable is calculated by multiplying each possible value of the variable by its probability, and then summing these products. Show more…
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