Waiting times​ (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the coefficient of variation for each of the two sets of​ data, then compare the variation. Bank A​ (single line): 6.4 6.6 6.8 6.8 7.0 7.3 7.4 7.6 7.7 7.7 Bank B​ (individual lines): 4.2 5.4 5.8 6.1 6.7 7.7 7.7 8.4 9.4 9.9 Question content area bottom Part 1 The coefficient of variation for the waiting times at Bank A is enter your response here​%. ​(Round to one decimal place as​ needed.)

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Waiting times​ (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the coefficient of variation for each of the two sets of​ data, then compare the variation.
 
Bank A​ (single line):
6.4
  6.6
  6.8
  6.8
  7.0
  7.3
  7.4
  7.6
  7.7
  7.7
 
Bank B​ (individual lines):
4.2
  5.4
  5.8
  6.1
  6.7
  7.7
  7.7
  8.4
  9.4
  9.9
 
 
 

Question content area bottom

Part 1
The coefficient of variation for the waiting times at Bank A is
enter your response here​%.
​(Round to one decimal place as​ needed.) 
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