Question $56(3$ points$)$

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A stock has an expected rate of return of $9\mathrm{.}8$ percent and a standard deviation of $15\mathrm{.}4$ percent. Which one of the following best describes the probability that this stock will lose at least half of its value in any one given year?

less than $16$ percent

less than $\mathrm{.}5$ percent

less than $1\mathrm{.}0$ percent

less than $2\mathrm{.}5$ percent

less than $5\mathrm{.}0$ percent