Data Distribution & the Normal Curve
Section: Statistics & ProbabilityBank code: STA-DDIGRE frequency: MediumPro
1. Core Idea
A distribution describes how data is spread out across its range. The GRE cares about three things:
- Shape — symmetric, skewed left, skewed right.
- Where the mean sits relative to the median.
- The normal distribution and its 68-95-99.7 rule.
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