Math Problem Solver

Original numbers in ascending order: $\frac{3}{10}$, $\frac{1}{3}$, $\frac{2}{5}$
Sum: $\frac{31}{30} \approx 1.0333$
Mean: $\frac{31}{90} \approx 0.3444$
Sample standard deviation: $\frac{\sqrt{21}}{90} \approx 0.0509$
Median: $\frac{1}{3} \approx 0.3333$
Mode: No mode