A small mobile service provider (MSP) offers four different basic cell phone plans that are sold at a kiosk in a mall. 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. Plan Sale Amount (in dollars) Probability of Sale Plan A 139 0.3 Plan B 172 0.32 Plan C 237 0.12 Plan D 289.5 0.36 a. What is the expected sale amount for the kiosk on a given day? Answer: ______ $ Do NOT round the answer!
A small mobile service provider (MSP) offers four different basic cell phone plans that are sold at a kiosk in a mall. The table below shows the sale amount for each plan (the upfront cost of each plan) as well as the
| Plan | Sale Amount (in dollars) | Probability of Sale |
| Plan A | 139 | 0.3 |
| Plan B | 172 |
0.32
|
| Plan C | 237 | 0.12 |
| Plan D | 289.5 | 0.36 |
a. What is the expected sale amount for the kiosk on a given day?
Answer: ______ $ Do NOT round the answer!
b. What is the standard deviation of the sale amount for the kiosk on a given day?
Answer: _____ $ Round to at least FIVE decimals if necessary
c. The kiosk owner earns a commission of 2% of each dollar earned from the sales made in a given day. They also earn a flat amount of 145 dollars per day. What is the expected amount of money the kiosk owner earns in a given day?
Answer: ____ $ Round to at least FIVE decimals if necessary
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