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Showing content from https://cplusplus.com/reference/random/normal_distribution/stddev/ below:

public member function

<random>

std::normal_distribution::stddev 
result_type stddev() const;

Standard deviation

Returns the standard deviation (σ) associated with the normal_distribution object.

This parameter is the root square of the distribution variance, which expresses the dispersion of parameters from its mean (μ).

This parameter is set on construction by its second parameter.



Parameters none

Return value Distribution parameter stddev associated with the object (its standard deviation).

Complexity Constant.

See also
normal_distribution::mean
Distribution mean (public member function)
normal_distribution::(constructor)
Construct normal distribution (public member function)
normal_distribution::param
Distribution parameters (public member function)

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