Which one would you say this is :(adsbygoogle = window.adsbygoogle || []).push({});

E(|x1-x2|)

x1, x2, xn - a sample of n values on the underlying random variable...

I was thinking this is a statistic

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Parametric function or statistic?

**Physics Forums | Science Articles, Homework Help, Discussion**