For the frequency distribution: Variate (x): x_1 x_2 x_3 … x_15 Frequency (f): f_1 f_2 f_3 … f_15 where 0<x_1<x_2<x_3<…<x_15=10 and Σ_i=1^15 f_i>0,…

For the frequency distribution : Variate $\displaystyle (x): \quad x_1 \quad x_2 \quad x_3 \ldots x_{15}$ Frequency $\displaystyle (f): \quad f_1 \quad f_2 \quad f_3 \ldots f_{15}$ where $\displaystyle 0<x_1<x_2<x_3<\ldots<x_{15}=10$ and $\displaystyle \sum_{i=1}^{15} f_i>0$, the standard deviation cannot be: