ummarizes the findings. Find the standard deviation of the amount of time spent in line. (Round your answer to three decimal places) 2662 xmin x= Time (minutes) DEKKI 18*42 26x43 36x44 4
ummarizes the findings. Find the standard deviation of the amount of time spent in line. (Round your answer to three decimal places) 2662 xmin x= Time (minutes) DEKKI 18*42 26x43 36x44 4
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:To study the efficiency of its new price-scanning equipment, a local supermarket monitored the amount of time its customers had to wait in line. The frequency distribution in the following table
summarizes the findings. Find the standard deviation of the amount of time spent in line. (Round your answer to three decimal places)
0.662
xmin
x=Time (minutes) Number of Customers
75
58
Need Help? Pe
0XX41
15842
25x<3
36x<4
45x45
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65
40
39
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