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statistics (Surveys (Designing questionnaires (Brief, Accommodate all…
statistics
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Averages
Mean
The mean of a set of values is found by adding the values and dividing the total by the number of values.
Median
The median of a data set is the middle number after the data has been ranked. If there is an even number of values in the set, then the median is the mean of a set of numbers.
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