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Patio, Lawn & Garden

Yermax WYK-192 A021000811 Carburetor for Echo PB755ST PB751 PB755 PB755T PB651H PB651T PB755SH Shindaiwa EB633RT EB630 Backpack Leaf Blower A021000810 A021000812

Patio, Lawn & Garden4.7· 374 Amazon ratings

Bias-adjusted across 374 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Patio, Lawn & Garden.

94.4%
Percentile · Global
95.0%
Percentile · Cohort
Patio, Lawn & Garden
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Yermax WYK-192 A021000811 Carburetor for Echo PB755ST PB751 PB755 PB755T PB651H PB651T PB755SH Shindaiwa EB633RT EB630 Backpack Leaf Blower A021000810 A021000812

How the score was built

Amazon ratings
374

used for the Bayesian percentile

Raw star average
4.7 / 5

unadjusted Amazon mean

Bayesian avg
4.61

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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