ANSWER
81.8%
EXPLANATION
The percentage of data that lies between 1 standard deviation below and 2 standard deviations above the mean is the sum of the percentages between those two values,
So this is,
[tex]34.1\%+34.1\operatorname{\%}+13.6\operatorname{\%}=81.8\operatorname{\%}[/tex]
Hence, 81.8% of the data lies within 1 SD below and 2 SD above the mean.
