$$Asset X$$ Asset Y$$ Asset Z

$$ Expected return$9\mathrm{.}5\%8\mathrm{.}8\%9\mathrm{.}5\%$

$$Standard deviation$4\mathrm{.}9\%5\mathrm{.}5\%5\mathrm{.}5\%$

$$

If an investor must choose between investing in either Asset X or Asset Z$,$ then: