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0.0669和0.0891是怎么算出來(lái)的?
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你好,A股票標(biāo)準(zhǔn)差=[(26%-22.45%)2×10%+(11%-22.45%)2×10%+(15%-22.45%)2×20%+(27%-22.45%)2×25%+(21%-22.45%)2×20%+(32%-22.45%)2×15%](1/2)=0.0669?
B股票標(biāo)準(zhǔn)差=[(13%-28.25%)2×10%+(21%-28.25%)2×10%+(27%-28.25%)2×20%+(41%-28.25%)2×25%+(22%-28.25%)2×20%+(32%-28.25%)2×15%](1/2)=0.0891?
2024 06/18 18:44
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