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Consider the following data: Average number of classes in the U.S. Year 2010 2011 2012 2013 2014 2015 2016 2017 23.6 15.6 26.6 Classes 19.6 14 17.5 25.8 13 Find the two-period moving average for year 2017? Answer Choices: a. 15.75 b. 12.7 c. 11.35 d. 19.4 2018 12.4 2019 10.3
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