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Erschienen in:
2022 | OriginalPaper | Buchkapitel
7. Random Variables
verfasst von : Christian Heumann, Michael Schomaker, Shalabh
Erschienen in: Introduction to Statistics and Data Analysis
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Abstract
In the first part of the book we highlighted how to describe data. Now we discuss the concepts required to draw statistical conclusions from a sample of data about a population of interest. For example, suppose we know the starting salary of a sample of 100 students graduating in law. We can use this knowledge to draw conclusions about the expected salary for the population of all students graduating in law. Similarly, if a newly developed drug is given to a sample of selected tuberculosis patients, then some patients may show improvement and some patients may not; but we are interested in the consequences for the entire population of patients.