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Normal distribution : ck12.org: More Empirical Rule and Z-score practice

Sal Khan

Abstract

Making inferences based on sample data. Confidence intervals. Margin of error. Hypothesis testing. Source: Khan Academy (www.khanacademy.org), used under the Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) license. All Khan Academy content is available for free at www.khanacademy.org. Khan Academy does not endorse the World Public Library.

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