Suppose the following table gives the extra travel time each year, in hours, for peak-period travelers in urban areas with more than 3 million people. Urban AreaAnnual Hours of Delay per TravelerLos Angeles-Long Beach-Santa Ana, Ca67San Francisco-Oakland, CA50Atlanta,GA61Washington (D.C.-VA-MD)66Dallas-Fort Worth-Arlington,TX53Houston,TX57 Find the mean of the extra travel time each year, in hours, for peak-period travelers in urban areas with more than 3 million people. ? hr What is the standard deviation for these data? ?hr

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Suppose the following table gives the extra travel time each year, in hours, for peak-period travelers in urban areas with more than 3 million people.  Urban AreaAnnual Hours of Delay per TravelerLos Angeles-Long Beach-Santa Ana, Ca67San Francisco-Oakland, CA50Atlanta,GA61Washington (D.C.-VA-MD)66Dallas-Fort Worth-Arlington,TX53Houston,TX57  Find the mean of the extra travel time each year, in hours, for peak-period travelers in urban areas with more than 3 million people. ? hr  What is the standard deviation for these data? ?hr

Louise Eldridge · Accepted Answer

Step 1  We have given detail of extra travel time each year, in hours, for peak-period travelers in urban areas.  We have to find mean and standard deviation of these data.  AreaDelay(D)(D−M)2Los6764San5081Atl614Wash6649Dall5336Hou574Mean(M)59  Step 2  Now, mean is given by  Mean=∑Dn=67+50+…+53+576=59  Then, standard deviation is  σ=∑(D−M)2n−1=(67−59)2+(50−59)2……(53−59)2+(57−59)26−1  σ=6.8993

Suppose the following table gives the extra travel time each year, in

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