Problem 4. (4 points) Remaining time: 73:02 (min:sec) Asmall mobile service provider (MSP) offers four different basic cell phone plans that are sold at a kiosk in a mail. The table below shows the sale amount for each plan (the upfront cost of each plan} as well as the probability that each plan will sell in a given day. Note that you must complete both parts a. and b. to receive any marks for the remaining parts of this question. a. Complete the missing value in the following table. Do NOTround your answer! Plan Sale Amount (in dollars) Probability of Sale Plan A 130.5 0.3 Plan B 151 E Plan C 230 0.12 Plan D 263 0.23 b. What is the expected sale amount for the kiosk on a given day? Answer: $ "' Do NOT round your answer! c. What is the standard deviation ofthe sale amount for the kiosk on a given day? Answer: $ Round to at least FIVE decimals if necessary d. The kiosk owner earns a commission of 2% of each dollar earned from the sales made in a given day. They also earn a at amount of 150 dollars per day. What is the expected amount of money the kiosk owner earns in a given day