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    Working with probability distributions and expected values.

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    Suppose 5 apples in a barrel of 25 apples are known to be rotten.
    (a) Draw a histogram for the number of rotten apples in a sample of 2 apples.

    (b) What is the expected number of rotten apples in a sample of 2 apples?

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    Let A be the event that choosing an apple randomly which is rotten
    <br>Obviously, ...