来自但华伟的问题
Acompanyismadeupof450employeeswhoworkatotalof13,500hoursperweek.IfThenumberofweeklyworkhoursperpersonhasanormaldistributionandthestandarddeviationequals7hours,howmanyemployeesworkmorethan37hoursperweek?
Acompanyismadeupof450employeeswhoworkatotalof13,500hoursperweek.IfThenumberofweeklyworkhoursperpersonhasanormaldistributionandthestandarddeviationequals7hours,howmanyemployeesworkmorethan37hoursperweek?
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2020-11-23 00:41