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Uses of Probability and Statistics
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This chapter introduces you to probability and statistics. First
come examples of the kinds of practical problems that this
knowledge can solve for us. Next this Introduction discusses
the relationship of probabilities to decisions. Then comes a discussion
of the two general types of statistics, descriptive and
inferential. Following this is a discussion of the limitations of
probability and statistics. And last is a brief history of statistics.
Most important, the chapter describes the types of problems
the book will tackle.
Because the term “statistic” often scares and confuses people—
and indeed, the term has several sorts of meanings—the chapter
includes a short section on “Types of Statistics.” Descriptive
statistics are numbers that summarize the information contained
in a group of data. Inferential statistics are procedures
to estimate unknown quantities; that is, these procedures infer
estimates and conclusions based on whatever descriptive
statistics are available.
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Uses of Probability and Statistics
Mathematics
English
2014
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