30 Days (track)
by Run-D.M.C.
30 Days appears on the following album(s) by Run-D.M.C.:
- Run-D.M.C. (track #8) (this album) (1984)
eBay
Condition: Used
eBay
Condition: Used
Listen to 30 Days on YouTube
30 Days 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 21 ratings for this track.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| 03/17/2026 10:01 | Exist-en-ciel | 86,685 | 71/100 | |
| 06/03/2023 22:41 | alexandermause | 16,512 | 85/100 | |
| 04/24/2023 07:00 | spinout | 39,162 | 83/100 | |
| 11/11/2022 19:34 | Fevernova | 34,272 | 82/100 | |
| 10/22/2022 16:30 | LosWochos | 310,909 | 80/100 |
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 72.3/100, a mean average of 70.5/100, and a trimmed mean (excluding outliers) of 70.5/100. The standard deviation for this track is 11.2.
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