What is the Normal Distribution? The probability density function of the normal distribution is: f(x) = (1 / $$ \sigma $$$\sqrt{2\pi}$)e-((x – $\mu$)2/2$ \sigma $2) The exponent (x – $$\mu$$)2 / $$\sigma$$2 can be reasoned about. The numerator measures how far x is from the mean. By squaring the difference, we always get a positive […]