variability - the value of the data being studied can change fromone thing to another, data - categories, numbers or observations gathered in response to a statistical question, statistical question - question that has more than one possible answer and requires the collection of data, population - an entire set of items from which data are collected, sample - a selection from a population, frequency - the number of times an item or number occurs in a data set, mode - the value or values that occur most frequently in a data set,

Understanding the Statistical Process

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