![]() ![]() Among his best known work is the prediction of the heights of adults based on the heights of their parents. As we saw in Section 7.1, Galton studied how physical characteristics are passed down from one generation to the next. The foundations of the method were laid by Sir Francis Galton. In this chapter we will study one of the most commonly used ways of predicting the value of one variable based on the value of another. To answer such questions, data scientists have developed methods for making predictions. What do data about climate and pollution say about temperatures a few decades from now? Based on a person’s internet profile, which websites are likely to interest them? How can a patient’s medical history be used to judge how well he or she will respond to a treatment?
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