18 (track)
by One Direction
18 appears on the following album(s) by One Direction:
- Four (track #4) (this album) (2014)
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Condition: Very Good
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Condition: Good
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Listen to 18 on YouTube
18 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 |
|---|---|---|---|---|
| ! | 08/25/2023 11:45 |  DommeDamian | 72,421 | 51/100 |
| ! | 02/22/2021 17:10 |  pjohnsongolf | 5,334 | 82/100 |
| ! | 03/13/2020 01:59 | NSPE | 4,552 | 79/100 |
| ! | 01/30/2018 17:22 |  Medelsvensson | 2,403 | 79/100 |
| ! | 11/16/2017 07:30 | juanr1096 | 70,971 | 79/100 |
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 58.2/100, a mean average of 44.2/100, and a trimmed mean (excluding outliers) of 44.2/100. The standard deviation for this track is 31.0.
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