Grey Walls (track)
by Richard Thompson
Grey Walls appears on the following album(s) by Richard Thompson:
- Rumor And Sigh (track #4) (this album) (1991)
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Condition: Very Good
eBay
Condition: Very Good
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Grey Walls 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 |
|---|---|---|---|---|
| ! | 01/05/2025 19:15 |  AAL2014 | 34,018 | 76/100 |
| ! | 10/13/2024 22:40 | slimharpo | 8,211 | 76/100 |
| ! | 12/09/2022 05:03 | Fevernova | 34,263 | 82/100 |
| ! | 03/10/2022 07:14 | Taosjohn | 4,231 | 75/100 |
| ! | 08/13/2020 09:52 | Moondance | 15,473 | 75/100 |
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 76.3/100, a mean average of 76.3/100, and a trimmed mean (excluding outliers) of 76.3/100. The standard deviation for this track is 9.4.
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