Examlex
How is a country's wealth related to other measures of well-being such as life expectancy and literacy?
Histogram
A graphical representation of the distribution of numerical data, usually showing the frequency of data within certain ranges.
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.
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