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statistics?
2.38 Baggage fees: An airline charges the following baggage fees: $25 for the first bag and $35 for the second. Suppose 54% of passengers have no checked luggage, 34% have only one piece of checked luggage and 12% have two pieces. We suppose a negligible portion of people check more than two bags.
The standard deviation of baggage-related revenue is: $ ? (please round to the nearest cent)
about how much revenue should the airline expect for a flight of 120 passengers? $
please round to the nearest dollar
please help
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