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How much of a county property tax ranking is sampling noise? Propagating ACS margins of error

How much of a county property tax ranking is sampling noise? Propagating ACS margins of error

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5 min read
SPC charts people actually keep using

SPC charts people actually keep using

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3 min read
Gage R&R in five minutes without opening Excel

Gage R&R in five minutes without opening Excel

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3 min read
Your Cpk looks great and the process still fails

Your Cpk looks great and the process still fails

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3 min read
Are your model's probabilities calibrated? Expected calibration error in NumPy

Are your model's probabilities calibrated? Expected calibration error in NumPy

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2 min read
Calibration: Why Neural Networks Are Confident and Wrong - and How to Fix Them

Calibration: Why Neural Networks Are Confident and Wrong - and How to Fix Them

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9 min read
I Tested Three Claude Reasoning Effort Policies on 20 of My Own Bug Fixes

I Tested Three Claude Reasoning Effort Policies on 20 of My Own Bug Fixes

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6 min read
How to Tell Whether Your Forecasting Model Beats the Market: A Python Walkthrough

How to Tell Whether Your Forecasting Model Beats the Market: A Python Walkthrough

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5 min read
Same score, two markets: flat in India, backwards in the US

Same score, two markets: flat in India, backwards in the US

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2 min read
Cloud Computing Statistics 2026: $128.6B in a Quarter, and Three Providers Own 63% of It

Cloud Computing Statistics 2026: $128.6B in a Quarter, and Three Providers Own 63% of It

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3 min read
How stable is your mean? A small bootstrap experiment in a Python notebook

How stable is your mean? A small bootstrap experiment in a Python notebook

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4 min read
Every Kind of Delivery We Make Got More Punctual and Our Board Was Told We Were Getting Worse

Every Kind of Delivery We Make Got More Punctual and Our Board Was Told We Were Getting Worse

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2 min read
Best bank statement analysis software: Benford's law on extracted data, with code

Best bank statement analysis software: Benford's law on extracted data, with code

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4 min read
How many dice rolls until a result repeats? The birthday problem on a 9,999-result engine

How many dice rolls until a result repeats? The birthday problem on a 9,999-result engine

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3 min read
A free spreadsheet moves the inner core's 70-year cycle by 6.8 years, on four rows

A free spreadsheet moves the inner core's 70-year cycle by 6.8 years, on four rows

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6 min read
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