This Opinion column aims to shed light on the often-overlooked difference between two main types of privacy from a control ...

Median of ordinal data In this example, the median equals category 3 ('Good') both for boys and girls. How is this possible while there is a highly significant difference between the sexes? It is ...

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Exchange Rate Query Tool - This query tool allows the user to retrieve exchange rates data from the IMF rates database, and view, print, or save the data.