Bad Day (track) by Justin Bieber
Bad Day appears on the following album(s) by Justin Bieber:
- Journals (track #5) (this album) (2013)
Upcoming concerts
Listen to Bad Day on YouTube
Bad Day 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 |
|---|---|---|---|---|
65/100  | 10/10/2023 13:02 |  DommeDamian | | 51/100 |
5/100 | 10/03/2023 06:30 | LammyTS1 | | 56/100 |
35/100 | 04/22/2023 15:10 | pinkfreud1981 | | 71/100 |
5/100 | 01/26/2018 08:34 |  Medelsvensson | | 79/100 |
5/100 | 01/31/2017 19:04 |  corenfro | | 68/100 |
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 46.2/100, a mean average of 24.6/100, and a trimmed mean (excluding outliers) of 24.6/100. The standard deviation for this track is 30.2.
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