Mamma Knows Best (track)
by Jessie J
Mamma Knows Best appears on the following album(s) by Jessie J:
- Who You Are (track #9) (this album) (2011)
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Mamma Knows Best 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 |
|---|---|---|---|---|
| ! | 12/15/2022 13:42 |  DommeDamian | 72,744 | 51/100 |
| ! | 01/08/2021 22:23 | azeri | 659 | 95/100 |
| ! | 09/25/2020 23:49 |  LukasAntoine00s | 5,187 | 80/100 |
| ! | 12/03/2016 02:29 | juanr1096 | 71,231 | 79/100 |
| ! | 08/28/2015 06:18 | DDrizzles | 1,288 | 84/100 |
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 68.2/100, a mean average of 60.9/100, and a trimmed mean (excluding outliers) of 60.9/100. The standard deviation for this track is 31.0.
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