Statistics

Failed to parse (syntax error): {\displaystyle f{x} = {\sum \lambda \cdot \bar{y} \over \sum \lambda^{2} \over n}}

$f(x,\mu ,\sigma )={\frac {1}{\sigma {\sqrt {2\pi }}}}e^{-{\frac {(x-\mu )^{2}}{2\sigma ^{2}}}}$