A stock has an expected return of $15\mathrm{.}7$ percent, the risk$-$free rate is $6\mathrm{.}25$ percent, and the market risk premium is $7\mathrm{.}6$ percent. What must the beta of this stock be$?$ Note: Do ot round intermediate calculations and round your answer to $3$ decimal places, e$.$g$.,32\mathrm{.}161.$