Perfect World (track)
by Billy Talent
Year: 2006
From the album Billy Talent II (track #11)
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Perfect World appears on the following album(s) by Billy Talent:
- Billy Talent II (track #11) (this album) (2006)
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Perfect World ratings
where:
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 |
|---|---|---|---|---|
70/100  | 02/13/2025 21:13 | mrmcrook | | 78/100 |
100/100 | 02/06/2023 12:00 | Musiclovah69 | | 67/100 |
80/100 | 04/23/2022 11:29 | LosWochos | | 80/100 |
100/100 | 07/28/2019 02:44 | LordMark | | 97/100 |
75/100 | 03/15/2017 00:26 | juanr1096 | | 79/100 |
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 76.9/100, a mean average of 77.5/100, and a trimmed mean (excluding outliers) of 77.5/100. The standard deviation for this track is 20.5.
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