Section 1
Overview
By Boundless
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There are four main levels of measurement: nominal, ordinal, interval, and ratio.
Statistics is the study of the collection, organization, analysis, interpretation, and presentation of data.
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Statistics teaches people to use a limited sample to make intelligent and accurate conclusions about a greater population.
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The mathematical procedure in which we make intelligent guesses about a population based on a sample is called inferential statistics.
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Data can be categorized as either primary or secondary and as either qualitative or quantitative.
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Statistics deals with all aspects of the collection, organization, analysis, interpretation, and presentation of data.
In applying statistics to a scientific, industrial, or societal problem, it is necessary to begin with a population or process to be studied.
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The essential skill of critical thinking will go a long way in helping one to develop statistical literacy.
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Experimental design is the design of studies where variation, which may or may not be under full control of the experimenter, is present.
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An unbiased random selection of individuals is important so that in the long run, the sample represents the population.