34.5.4 The Bell-Shaped Intuition of the Normal Distribution
34.5 Seeing the Whole from a Sample: An Introduction to Statistical Inference
Point 4 of 5
34.5.4 The Bell-Shaped Intuition of the Normal Distribution
Core idea
Heights and weights tend to be high in the middle and low on both sides, a bell shape written N(μ,σ²), where μ sets the center and σ sets the width
Module goal. Understand why a small sample can speak for a large population, build the ideas of estimation and sampling variability, and prepare the ground for correlation and testing
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