Question
24) The manager of a bank recorded the amount of time each customer spent waiting in...
24) The manager of a bank recorded the amount of time each
customer spent waiting in line during 24) peak business hours one
Monday. The frequency distribution below summarizes the results.
Find
the standard deviation. Round your answer to one decimal place.
Waiting time Number of (minutes) customer
0-3 13
4-7 13
8-11 10
12-15 11
16-19 0
20-23 3
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