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Random Variables, Means, Variance, and Standard Deviations in Probability and Statistics

Random Variables, Means, Variance, and Standard Deviations in Probability and Statistics

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Random variables

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Random variables

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Random Variables, Means, Variance, and Standard Deviations in Probability and Statistics

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  1. 1 Random variables
  2. 2 Three numbers associated to a random variable X
  3. 3 Probability distribution of a random variable
  4. 4 Example; lottery example
  5. 5 Expected value / mean
  6. 6 Variance
  7. 7 Formula for variance
  8. 8 Standard deviation

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