AIR MATH

Math Question

The manager of a video store has compiled the following table, which gives the probabilities that a customer will buy \( 0,1,2,3 \), or 4 DVDs. \begin{tabular}{|l|l|l|l|l|l|} \hline DvDs & 0 & 1 & 2 & 3 & 4 \\ \hline Probability & \( .42 \) & \( .36 \) & \( .14 \) & \( .05 \) & \( .03 \) \\ \hline \end{tabular} What is the expected value for the purchase of DVDs?

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