Blackout (track)
by Anna Calvi
Blackout appears on the following album(s) by Anna Calvi:
- Anna Calvi (track #7) (this album) (2011)
- Live At Meltdown (track #3) (2017)
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Condition: Very Good
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Blackout 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 |
|---|---|---|---|---|
| ! | 06/28/2025 05:13 | Johnnyo | 42,621 | 80/100 |
| ! | 09/28/2022 18:31 |  covecove | 67,308 | 84/100 |
| ! | 11/17/2020 11:03 |  ssteve | 25,009 | 78/100 |
| ! | 04/30/2020 13:20 | tom6011 | 3,137 | 81/100 |
| ! | 09/07/2019 17:07 | panapsal | 15,104 | 84/100 |
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 9% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 78.9/100, a mean average of 81.4/100, and a trimmed mean (excluding outliers) of 81.4/100. The standard deviation for this track is 7.7.
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