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  1. Nicole Seaman

    P1.T2.20.11. Sample moments and bias

    Learning objectives: Estimate the mean, variance, and standard deviation using sample data. Explain the difference between a population moment and a sample moment. Distinguish between an estimator and an estimate. Describe the bias of an estimator and explain what the bias measures. Questions...
  2. Nicole Seaman

    P1.T2.20.3. Random variables (first of two)

    Learning objectives: Describe and distinguish a probability mass function from a cumulative distribution function and explain the relationship between these two. Understand and apply the concept of a mathematical expectation of a random variable. Describe the four common population moments...