Chapter 8 More than one random variable

Often we have more than one random quantity in an experiment. For example:

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  the height and weight of a randomly sampled tree,

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  the amount of precipitation and the height of a river,

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  the outcomes of repeated trials in an experiment.

So far we have only introduced the machinery to deal with a single random variable for each experiment. In this last (brief!) chapter we will introduce the most basic ideas about how to deal with more than one random quantity in an experiment.