Alien Observer (track)
by Grouper
Year: 2011
From the album A I A : Alien Observer (track #2)
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Alien Observer appears on the following album(s) by Grouper:
- A I A : Alien Observer (track #2) (this album) (2011)
- A I A (track #9) (compilation) (2012)
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Condition: Used
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Alien Observer ratings
Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AVwhere:
av = trimmed mean average rating an item has currently received.
n = number of ratings an item has currently received.
m = minimum number of ratings required for an item to appear in a 'top-rated' chart (currently 10).
AV = the site mean average rating.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 11/30/2025 22:55 | Exist-en-ciel | 43,747 | 70/100 |
| ! | 12/27/2024 06:36 |  AAL2014 | 34,776 | 76/100 |
| ! | 09/22/2023 15:50 |  seb7 | 4,516 | 91/100 |
| ! | 05/14/2023 05:44 | Aaron98 | 7,024 | 90/100 |
| ! | 02/06/2023 11:34 | Musiclovah69 | 4,483 | 67/100 |
Rating metrics:
Outliers can be removed when calculating a mean average to dampen the effects of ratings outside the normal distribution. This figure is provided as the trimmed mean. A high standard deviation can be legitimate, but can sometimes indicate 'gaming' is occurring. Consider a simplified example* of an item receiving ratings of 100, 50, & 0. The mean average rating would be 50. However, ratings of 55, 50 & 45 could also result in the same average. The second average might be more trusted because there is more consensus around a particular rating (a lower deviation).
(*In practice, some tracks can have several thousand ratings)
This track is rated in the top 2% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 85.2/100, a mean average of 85.4/100, and a trimmed mean (excluding outliers) of 87.6/100. The standard deviation for this track is 16.4.
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