Which one of the following portfolios cannot lie on the efficient frontier as described by Markowitz?PortfolioExpected ReturnStandard DeviationW9%21%X5%7%Y15%36%Z12%15%
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Which one of the following portfolios cannot lie on the efficient frontier as described by Markowitz?
Portfolio
Expected Return
Standard Deviation
W
9%
21%
X
5%
7%
Y
15%
36%
Z
12%
15%
Only portfolio X cannot lie on the efficient frontier.
Only portfolio W cannot lie on the efficient frontier.
Only portfolio Y cannot lie on the efficient frontier.
Cannot tell from the information given.
Only portfolio Z cannot lie on the efficient frontier.