Polyrock
by Polyrock
eBay
Condition: Used
eBay
Condition: Used
Polyrock bestography
Polyrock is ranked as the best album by Polyrock.
(N.B. Bestographies include all albums by an artist (and their variations), but do not include albums ranked outside the top 100,000).
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Polyrock track list
The tracks on this album have an average rating of 76 out of 100 (1 out of 11 tracks have been rated).
Polyrock rankings
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CellarDoorPolyrock collection
Showing all 3 members who have this album in their collection
Polyrock 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 album. | Show all 16 ratings for this album.
| Rating | Date updated | Member | Album ratings | Avg. album rating |
|---|---|---|---|---|
| ! | 09/28/2024 19:34 | dhbarrett | 8,329 | 65/100 |
| ! | 03/17/2024 21:12 | JamesMowbray | 5,337 | 70/100 |
| ! | 08/28/2022 19:25 | mityam | 1,250 | 74/100 |
| ! | 08/01/2022 07:14 |  MadhattanJack | 5,584 | 65/100 |
| ! | 03/05/2022 00:18 | Skerns | 5,068 | 80/100 |
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 albums can have several thousand ratings)
This album has a Bayesian average rating of 70.5/100, a mean average of 69.4/100, and a trimmed mean (excluding outliers) of 69.4/100. The standard deviation for this album is 18.4.
Polyrock comments
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