題組內容
七、Here are returns and standard deviations for four investments。(20 分)
Calculate the standard deviations of the following portfolios.
a. \( 30\% \) in Treasury bills, \( 70\% \) in stock P. (5分)
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七、Here are returns and standard deviations for four investments。(20 分)
Calculate the standard deviations of the following portfolios.
a. \( 30\% \) in Treasury bills, \( 70\% \) in stock P. (5分)