find the standard deviation of 2% 3% -0.2

What is the standard deviation of the expected return A=2.0% B=3.0%
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1 Answer

Iz the input 3 numbers or 3 numbers????

me ges yu kan konvert 2%=0.02 & 3%=0.03 & thro in -0.2

plug it in formula & get std deviashun0.10614

but duit make NE sens??????
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