Crash Course In Brain Surgery (track)
by Metallica
Year: 1998
From the album Garage Inc. (track #15)
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Crash Course In Brain Surgery appears on the following album(s) by Metallica:
- Garage Inc. (track #15) (this album) (1998)
- The $5.98 EP: Garage Days Re-Revisited (track #4) (1987)
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Listen to Crash Course In Brain Surgery on YouTube
Crash Course In Brain Surgery 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 |
|---|---|---|---|---|
| ! | 08/06/2025 00:39 |  ExTeaSea | 12,295 | 85/100 |
| ! | 06/06/2025 15:00 | stareaterogni0n | 2,952 | 72/100 |
| ! | 12/18/2024 11:34 |  doombringer | 12,485 | 74/100 |
| ! | 09/30/2024 05:27 | juanr1096 | 71,231 | 79/100 |
| ! | 03/24/2024 12:32 | phmusic | 62,859 | 100/100 |
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 73.5/100, a mean average of 72.4/100, and a trimmed mean (excluding outliers) of 72.4/100. The standard deviation for this track is 10.9.
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