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Question description

Fuel consumption is commonly measured in miles per gallon​ (mi/gal). An agency designed new fuel consumption tests to be used starting with 2008 car models. Listed below are randomly selected amounts by which the measured MPG ratings decreased because of the new 2008 standards. Find the​ range, variance, and standard deviation for the sample data. Is the decrease of 4​ mi/gal unusual? Why or why​ not?

1 1 4 2 3 3 3 2 2 2 2 3 1 2 2 2 1 2 2 2 

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(Top Tutor) Daniel C.
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School: UIUC
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