Examlex
If a respondent is called and is "not at home," that sample element is no longer usable and callbacks should not be made. To do otherwise will distort the response rate.
Class Interval
A range of values in a dataset that is grouped together for the purpose of constructing a frequency distribution or histogram.
Frequency Distribution
A summary of data showing the number (frequency) of observations in each of several non-overlapping categories or bins.
Cumulative Frequency
A count of the number of occurrences that fall within certain class intervals or categories, accumulated from the beginning of a set of data up to each point.
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