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degrees of freedom #maths #statistics #machinelearning #datascience
Why do we divide by n - 1 in sample variance? This common statistics question confuses many, but the real answer is deeply rooted in geometry, degrees of freedom, and vector space. In this video, we explain in simple terms why sample variance isn't divided by n, using intuitive visuals, vectors, and 2D space. Whether you're studying statistics ...
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