Essay
The supervisor of a tourist information desk at a local airport is interested in how long it takes an employee to serve a customer.Using a stopwatch,he measures the amount of time it takes for each of 10 customers.These times,measured in minutes,are reported as follows: 2.3,1.5,3.9,0.6,2.7,3.1,2.8,0.9,1.4,and 2.6.Calculate the standard deviation and the interquartile range.
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