A study wants to do research on whether or not the median age of social media users is getting younger.  Data was collected on the age of social media users for the years 2010 and 2020 and then compared.  This is an example of an ____________________ study. A. Experimental       B. Observational

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A: Average customer service call =  1 call50 hours = 0.02 call/hr Arrival rate for each cutomer/ hr = λ…

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Q: Office Equipment, Inc. (OEI) leases automatic mailing machines to business customers in Fort Wayne,…

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