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Beauty & Personal Care

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Beauty & Personal Care3.3· 420 Amazon ratings

Bias-adjusted across 420 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Beauty & Personal Care.

2.3%
Percentile · Global
2.8%
Percentile · Cohort
Beauty & Personal Care
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Hair Volume Insert Clip Real Human Hair Silky Straight Short Hair Extensions Natural Invisible Lady Parts Frontal Bangs Toppers for Women Men With Thinning Hair Short Hair 4"#1 Jet Black

How the score was built

Amazon ratings
420

used for the Bayesian percentile

Raw star average
3.3 / 5

unadjusted Amazon mean

Bayesian avg
3.49

raw rating shrunk to the category prior

Reviewer-graph z
-0.707

bias-corrected vs. each reviewer's baseline (0 qualifying)

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Same category · Beauty & Personal Care

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