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)
Listen to Perfect World on YouTube
Perfect World 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 |
|---|---|---|---|---|
| ! | 06/06/2026 03:36 | Exist-en-ciel | 156,691 | 71/100 |
| ! | 02/13/2025 21:13 | mrmcrook | 12,562 | 78/100 |
| ! | 02/06/2023 12:00 | Musiclovah69 | 4,483 | 67/100 |
| ! | 04/23/2022 11:29 | LosWochos | 314,992 | 80/100 |
| ! | 07/28/2019 02:44 | LordMark | 4,772 | 97/100 |
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 76.2/100, a mean average of 76.4/100, and a trimmed mean (excluding outliers) of 76.4/100. The standard deviation for this track is 19.9.
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