Question: Need a clear explanation 4. (15 points) The probability distribution table describes the price delivery services and the proportion of users of some delivery service

Need a clear explanation

Need a clear explanation 4. (15 points) The probability distribution table

4. (15 points) The probability distribution table describes the price delivery services and the proportion of users of some delivery service that buys that service. Service Price Probability Geralf's Messengers $3 0.3672 Samut's Shipments $4.5 0.0616 Kiki-Jiki's Delivery $5 0.5711 (a) What are the three conditions that determine a random variable? (b) Is " Service" a random variable? Why or why not? (c) Is "Price" a random variable? Why or why not? (d) Regardless of your answer for the preceding part, find the expected value for the price. Round to the nearest cent

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