U Don't Know (track)
by Jay-Z
U Don't Know appears on the following album(s) by Jay-Z:
- The Blueprint (track #6) (this album) (2001)
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Condition: Used
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U Don't Know 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 |
|---|---|---|---|---|
| ! | 11/28/2025 00:04 | Exist-en-ciel | 49,694 | 70/100 |
| ! | 10/13/2025 19:50 | SD100852 | 11,020 | 77/100 |
| ! | 09/25/2025 19:36 | sunnydhamm | 18,417 | 57/100 |
| ! | 07/13/2025 21:27 |  Montpejo | 7,900 | 76/100 |
| ! | 07/06/2025 17:43 | ShenBapiro | 6,173 | 77/100 |
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 is rated in the top 5% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 80.8/100, a mean average of 78.5/100, and a trimmed mean (excluding outliers) of 81.2/100. The standard deviation for this track is 18.7.
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