Definition of expected value & calculating by hand and in Excel. Includes video. Find an expected value for a discrete random variable. Definition of expected value, from the Stat Trek dictionary of statistical terms and concepts. This statistics glossary includes definitions of all technical terms used. Sal finds two missing frequencies given the total frequency and the expected value.
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Expected value in statistics Video
Prob & Stats - Random Variable & Prob Distribution (25 of 53) Expected Value - Example 1