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OpenStudy (anonymous):
in Tucson, Arizona, the air pollution index averages 62.5 during the year with a standard deviation of 18. assuming normality, the index falls within what interval 95% of the time? A) (8.5, 116.5) B) (44.5, 80.5) C) (45.4, 79.6) D) (26.5, 98.5) E) not enough info given
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OpenStudy (anonymous):
@AmTran_Bus @bday111 @countonme123 @dss08a @experimentX @FriedRice14
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