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# Here are some shopping times (in minutes) for a sample of 5 shoppers at a particular shoe store: 22,33,43,21,31. Find the standard deviation of this...

Here are some shopping times (in minutes) for a sample of 5 shoppers at a particular shoe store: 22,33,43,21,31. Find the standard deviation of this sample of shopping times. Round your answer to at least two decimal places.