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Chapter 1
Statistics, Data, and Statistical Thinking
data – factual information (as measurements or statistics) used as a basis for
reasoning, discussion, or calculation.
statistics – the science of data, involving collecting, classifying, summarizing, organizing,
analyzing, and interpreting numerical information.
descriptive statistics – utilizes numerical and graphical methods to look for patterns in a data set, to
summarize the information revealed in a data set, and to present that
information in a convenient form.
inferential statistics – utilizes sample data to make estimates, decisions, predictions, or other
generalizations about a larger set of data.
population – a set of units (usually people, objects, transactions, or events) that have an
interest in being studied.
variable – a characteristic or property of an individual population unit.
measurement – the process by which numbers are assigned to variables.
census – the measurement of a variable for every unit of a population.
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This note was uploaded on 11/10/2009 for the course MATH 141 taught by Professor Unknown during the Fall '04 term at Bloomsburg.
 Fall '04
 Unknown
 Math, Statistics

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