The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean $4.59 and a standard deviation of $0.10. Sixteen gas station from the Bay Area are randomly chosen. We are interested in the average cost of gasoline for the 16-gasoline station. Which of the following distribution to use? XN (4.59,0.16/√10) XN (4.59,0.10) wxwx XN (4.59,0.16/10) wwwx O wwxx XN (4.59,0.10/√16) O xxww

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