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Example 1 Suppose a random group of people are surveyed about their use of smartphones The results of the survey are summarized in the tables below Example 2 Suppose a sample of participants (teachers and students) was randomly selected from the middle schools and high schools in a large city• Distinction between categorical and quantitative variables • Displays of categorical data, including bar charts, pie charts, and segmented bar charts • Distinction between parameters and statistics in a sports context • The law of large numbersIn the literature the application of categorical exercise variables is not uncommon In most studies these variables only represent recodings of originally continuous variables, for example defining a certain amount of energy expenditure to distinguish exercise adherence from nonadherence (eg, Colley et al, 08; Frequency Tables Overview Categorical variable examples sports