Chach (track)
by Calexico
Chach appears on the following album(s) by Calexico:
- The Black Light (track #7) (this album) (1998)
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Chach 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.
Showing latest 5 ratings for this track. | Show all 11 ratings for this track.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 05/29/2026 02:48 | Exist-en-ciel | 160,619 | 71/100 |
| ! | 02/11/2025 08:21 |  doombringer | 14,863 | 74/100 |
| ! | 05/01/2023 16:12 |  DommeDamian | 74,827 | 51/100 |
| ! | 09/02/2021 12:11 | markc19 | 19,118 | 88/100 |
| ! | 05/06/2021 15:41 |  ssteve | 25,832 | 78/100 |
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 has a Bayesian average rating of 76.4/100, a mean average of 76.8/100, and a trimmed mean (excluding outliers) of 76.8/100. The standard deviation for this track is 12.3.
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