The standard deviation of a portfolio:

A、isaweightedaverageofthestandarddeviationsoftheindividualsecuritiesheldintheportfolio.
B、canneverbelessthanthestandarddeviationofthemostriskysecurityintheportfolio.
C、mustbeequaltoorgreaterthantheloweststandarddeviationofanysinglesecurityheldintheportfolio.
D、isanarithmeticaverageofthestandarddeviationsoftheindividualsecuritieswhichcomprisetheportfolio.
E、canbelessthanthestandarddeviationoftheleastriskysecurityintheportfolio.Difficulty:1EasyTopic:StandarddeviationandvarianceLearningObjective:13-01Showhowtocalculateexpectedreturns,variance,andstandarddeviation.