Mr. Rock & Roll (track)
by Amy MacDonald
Year: 2007
From the album This Is The Life (track #1)
Mr. Rock & Roll appears on the following album(s) by Amy MacDonald:
- This Is The Life (track #1) (this album) (2007)
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Condition: Brand New
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Condition: Used
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Condition: Very Good
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Mr. Rock & Roll ratings
where:
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 |
|---|---|---|---|---|
75/100  | 01/07/2023 15:28 | Imaybeparanoid | | 69/100 |
70/100 | 01/25/2022 21:40 |  sssvnnn | | 68/100 |
90/100 | 12/29/2020 15:06 | Kettwig | | 92/100 |
80/100 | 12/22/2020 16:03 | Pluto11 | | 76/100 |
80/100 | 07/28/2018 07:03 | LosWochos | | 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 tracks can have several thousand ratings)
This track has a Bayesian average rating of 77.5/100, a mean average of 78.5/100, and a trimmed mean (excluding outliers) of 78.5/100. The standard deviation for this track is 8.2.
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