Expected Value and Variance 6.1 Expected Value of Discrete Random Variables Average Value

    Abstract

    When a large collection of numbers is assembled, as in a census, we are usually interested not in the individual numbers, but rather in certain descriptive quantities such as the average or the median. In general, the same is true for the probability distribution of a numerically-valued random variable. In this and in the next section, we shall discuss two… (More)

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