Sample variance | Descriptive statistics | Probability and Statistics | Khan Academy
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Sample variance | Descriptive statistics | Probability and Statistics | Khan Academy
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/measuring-spread-quantitative/v/sample-variance Thinking about how we can estimate the variance of a population by looking at the data in a sample. Practice this lesson ...
406.9K viewsNov 21, 2012
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