9 Dan Conway invested his life savings in cryptocurrencies in 2016. Since then, that investment has earned an average return of 9.79%. What is the range of Dan Conways returns with a 68% probability, if his investment exhibits a standard deviation of 18.78%?

• 8.99% to 28.57%

• 18.38% to 37.96%

• 8.99% to 10.59%

• 46.55% to 66.13%

• 27.77% to 47.35%