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Health, Household & Baby

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Health, Household & Baby4.4· 247 Amazon ratings

Bias-adjusted across 247 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Health, Household & Baby.

66.4%
Percentile · Global
55.8%
Percentile · Cohort
Health, Household & Baby
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Replacement Toothbrush Heads Compatible with Oral B, 4 Pack Generic Electric Toothbrush Heads Brush Heads for Oral-B Braun Electric Toothbrush (WD20-4 Pack)

How the score was built

Amazon ratings
247

used for the Bayesian percentile

Raw star average
4.4 / 5

unadjusted Amazon mean

Bayesian avg
4.37

raw rating shrunk to the category prior

Reviewer-graph z
0.009

bias-corrected vs. each reviewer's baseline (1 qualifying)

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Same category · Health, Household & Baby

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