The following table gives the percentage of on-time arrivals in airports in a certain country from 2004 through 2013. 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Year On-time Arrivals (%) 76.03 74.25 77.01 70.23 70.45 79.59 76.65 75.36 84.83 80.23 Find the average percentage of on-time arrivals over the 10 years from 2004 through 2013. What is the standard deviation for these data? (Round your answer to two decimal places.)
The following table gives the percentage of on-time arrivals in airports in a certain country from 2004 through 2013. 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Year On-time Arrivals (%) 76.03 74.25 77.01 70.23 70.45 79.59 76.65 75.36 84.83 80.23 Find the average percentage of on-time arrivals over the 10 years from 2004 through 2013. What is the standard deviation for these data? (Round your answer to two decimal places.)
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:The following table gives the percentage of on-time arrivals in airports in a certain country from 2004 through 2013.
Year
2005
2006
2007 2008 2009 2010 2011 2012 2013.
On-time
Arrivals (%) 76.03 74.25 77.01
70.23 70.45 79.59 76.65
75.36 84.83 80.23
Find the average percentage of on-time arrivals over the 10 years from 2004 through 2013.
2004
What is the standard deviation for these data? (Round your answer to two decimal places.)
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