Question
CDC (Centers for Disease Control and Prevention)is conducing a study toexplore whether people from the East coast and people from the West coast react differently
CDC (Centers for Disease Control and Prevention)is conducing a study toexplore whether people from the East coast and people from the West coast react differently to the policy of wearing a face mask when they are in publicduring theCOVID-19pandemic.CDCrandomlyselected 200 people from the East coastand 160 from the West coast, and asked them to indicate whether they will wear a face mask publicly during the pandemic.Among the 200Easterners,125answered"yes",75answered "no"; among the 160Westerners, 90answered "yes",70answered "no".
Assuming there is no difference in reactions to the mask wearingpolicy between Easterners and Westerns, what is theexpectedpercentage of Easterners who would have answered "yes"?
A:45.83%
B: 40.28%
C: 54.17%
D: 59.72%
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