investment that has an expected return of $27\%$ and a standard deviation of $10\%.$ What is the investment's coefficient of variation? Do not round your intermediate calculations. Round the final answer to $2$ decimal places.

$$ a$.0\mathrm{.}58$

$$ b$.0\mathrm{.}37$

$0.0\mathrm{.}27$

$$ d$.0\mathrm{.}18$

$0$ e$.0\mathrm{.}47$