Descriptive statistics | Probability and statistics | Khan Academy - 0 views
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drrwgrant on 29 Sep 14From probably the largest and most well known source of tutorials on the web. Sal Khan's lessons can teach you all the technical material you need from the basics to very advanced. Recommended!
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Measures of central tendency This is the foundational tutorial for the rest of statistics. We start thinking about how you can represent a set of numbers with one number that somehow represents the "center". We then talk about the differences between populations, samples, parameters and statistics.