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Automotive

Hand Electric Drill Drive Self Priming Pump Home Oil Fluid Water Transfer Pumps

Automotive3.0· 194 Amazon ratings

Bias-adjusted across 194 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Automotive.

2.1%
Percentile · Global
1.9%
Percentile · Cohort
Automotive
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Hand Electric Drill Drive Self Priming Pump Home Oil Fluid Water Transfer Pumps

How the score was built

Amazon ratings
194

used for the Bayesian percentile

Raw star average
3.0 / 5

unadjusted Amazon mean

Bayesian avg
3.44

raw rating shrunk to the category prior

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Same category · Automotive

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