Lullaby (track)
by Sia
Year: 2008
From the album Some People Have Real Problems (track #13)
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Lullaby appears on the following album(s) by Sia:
- Some People Have Real Problems (track #13) (this album) (2008)
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Lullaby 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 track. | Show all 11 ratings for this track.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 06/11/2026 13:26 | Exist-en-ciel | 168,365 | 71/100 |
| ! | 06/25/2025 22:00 | DaaN | 5,275 | 74/100 |
| ! | 04/12/2025 16:34 | dukeboxkool | 8,459 | 75/100 |
| ! | 10/05/2023 20:30 |  antiloopje | 8,589 | 78/100 |
| ! | 06/04/2023 20:52 | alexandermause | 17,953 | 85/100 |
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 76.6/100, a mean average of 77.3/100, and a trimmed mean (excluding outliers) of 77.3/100. The standard deviation for this track is 8.6.
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