if a random variable X has variance(adsbygoogle = window.adsbygoogle || []).push({}); sigma, does it mean that the average variance of X will besigma, or will X always have variancesigma.

So if I did 10 simulations of the random variable X, is it plausiable that the variances differ widely, but the average of the variances converge to the theoretical variance, or do each of the variance have to be the same.

**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!

# Simple variance question

Loading...

Similar Threads for Simple variance question |
---|

I A seemingly simple problem about probability |

I One-Way Analysis of Variance |

I Variance of ratios |

I A simple question about probability theory |

A Advanced Data Fitting - More than Simple Regressions |

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