Pearl (track)
by Katy Perry
Pearl appears on the following album(s) by Katy Perry:
- Teenage Dream (track #10) (this album) (2010)
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Pearl 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 49 ratings for this track.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 07/04/2026 01:35 | Exist-en-ciel | 167,844 | 71/100 |
| ! | 05/09/2026 17:43 |  Tamthebam | 45,553 | 79/100 |
| ! | 10/21/2025 23:04 | stanchoiaz | 1,204 | 81/100 |
| ! | 09/26/2024 07:34 |  DommeDamian | 75,712 | 51/100 |
| ! | 12/14/2023 08:58 | Fertu | 40,979 | 82/100 |
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 53.1/100, a mean average of 48.5/100, and a trimmed mean (excluding outliers) of 48.5/100. The standard deviation for this track is 24.1.
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