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Mathematics · L3 · Sampling & Statistical Inference Basics

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From population to a trustworthy estimate: how the sampling method and sample size affect how much you can trust the result.

by @openstemUpdated Mathematics
🌍 Whole population🔬 Draw a sampleWas selection random?🎯 Representative sample⚠️ Biased sampleHow large is the sample?Sample mean varies a lot — wide margin of errorSample mean is stable — narrow margin of errorEstimate is unreliable regardless of sizeYes, randomNo, convenience onlySmallLarge

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