NICK LORD, Discrete random variables having equal mean and variance, The Mathematical Gazette, Vol. 98, No. 542 (July 2014), pp. 347-349 ...

We discuss the possibilities and limitations of estimating the mean of a real-valued random variable from independent and identically distributed observations from a nonasymptotic point of view. In ...

Normal Distribution Normal, or Gaussian, distribution describes a pattern where values in your defined range occur more frequently around a center point, or mean.