MTV Unplugged
by Katy Perry
(Live album)
Year: 2009
Release date: 2009-11-13
Overall rank: -
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MTV Unplugged track list
The tracks on this album have an average rating of 73 out of 100 (all tracks have been rated).
MTV Unplugged rankings
| Year | Source | Chart | Rank | Rank Score |
|---|---|---|---|---|
| 2020 |  Applerill | Gig Recs For Those Who Can't Get Laid | 58/68 | - |
| Total Charts: The total number of charts that this album has appeared in. | 1 | |||
| Total Rank Score: The total rank score. | 0 | |||
MTV Unplugged collection
Showing all 3 members who have this album in their collection
MTV Unplugged 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 18 ratings for this album.
| Rating | Date updated | Member | Album ratings | Avg. album rating |
|---|---|---|---|---|
| ! | 11/01/2021 18:11 | Brandonjtg | 1,924 | 89/100 |
| ! | 07/17/2021 01:48 |  zwiebel | 4,168 | 56/100 |
| ! | 05/22/2021 17:33 | HiHeyeyHello | 240 | 75/100 |
| ! | 01/07/2021 21:01 | azeri | 191 | 96/100 |
| ! | 08/30/2020 21:08 | Bdba | 279 | 72/100 |
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 52.4/100, a mean average of 41.4/100, and a trimmed mean (excluding outliers) of 41.4/100. The standard deviation for this album is 31.9.
MTV Unplugged favourites
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MTV Unplugged comments
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