SciPy

scipy.stats.rv_discrete.std

rv_discrete.std(*args, **kwds)[source]

Standard deviation of the distribution.

Parameters:
arg1, arg2, arg3,… : array_like

The shape parameter(s) for the distribution (see docstring of the instance object for more information)

loc : array_like, optional

location parameter (default=0)

scale : array_like, optional

scale parameter (default=1)

Returns:
std : float

standard deviation of the distribution