[Foundation-l] Is random article truly random

[Andre Engels]

On Fri, Oct 21, 2011 at 7:26 AM, Castelo <michelcastelobranco at gmail.com>wrote:

> On 21-10-2011 03:06, Andreas K. wrote:
> > the
> > median is always smaller than the average.
> There's no such relation between median and average:
>
> {20, 21, 24, 26, 28}: Median (24) > Average (23.8)
> {20, 22, 24, 26, 28}: Median (24) = Average (24)
> {20, 23, 24, 26, 28}: Median (24) < Average (24.2)
>

Andreas wrote in full:

> For the relative position of mode, median and average in a right-skewed
> distribution see
> http://en.wikipedia.org/wiki/File:Comparison_mean_median_mode.svg<http://en.wikipedia.org/wiki/File:Comparison_mean_median_mode.svg>-- the
> median is always smaller than the average.

The four distributions that you give definitely are not all right-skewed.

-- 
André Engels, andreengels at gmail.com