The Happy Birthday Song (track)
by Andrew Bird

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Andrew Bird & The Mysterious Production Of Eggs (14 tracks)

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The Happy Birthday Song appears on the following album(s) by Andrew Bird:

• Andrew Bird & The Mysterious Production Of Eggs (track #14) (this album) (2005)

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The Happy Birthday Song ratings

   Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AV
where:
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 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 6% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 79.9/100, a mean average of 80.8/100, and a trimmed mean (excluding outliers) of 80.8/100. The standard deviation for this track is 9.5.

• Related links:
• Top tracks by Andrew Bird
• Top tracks of the 2000s
• Top tracks of 2005

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