Debut Surbahar Recital (studio album) by Annapurna Devi
Annapurna Devi bestography
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Debut Surbahar Recital track list
Debut Surbahar Recital rankings
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Debut Surbahar Recital collection
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Debut Surbahar Recital ratings
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.
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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 albums can have several thousand ratings)
This album has a Bayesian average rating of 69.1/100, a mean average of 65.8/100, and a trimmed mean (excluding outliers) of 65.8/100. The standard deviation for this album is 23.5.
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