Joanie's Butterfly (track)
by Aerosmith
Year: 1982
From the album Rock In A Hard Place (track #7)
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Joanie's Butterfly appears on the following album(s) by Aerosmith:
- Rock In A Hard Place (track #7) (this album) (1982)
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Listen to Joanie's Butterfly on YouTube
Joanie's Butterfly 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 |
|---|---|---|---|---|
| ! | 4 days ago |  AAL2014 | 35,044 | 76/100 |
| ! | 03/12/2024 11:19 | phmusic | 62,859 | 100/100 |
| ! | 02/17/2024 14:24 | Phmus84 | 16,456 | 100/100 |
| ! | 08/09/2023 01:25 |  covecove | 66,825 | 84/100 |
| ! | 09/07/2021 18:11 | Fevernova | 34,263 | 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 73.9/100, a mean average of 71.8/100, and a trimmed mean (excluding outliers) of 71.8/100. The standard deviation for this track is 17.0.
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