

   LLeennggtthhss ooff MMaajjoorr NNoorrtthh AAmmeerriiccaann RRiivveerrss

        data(rivers)

   FFoorrmmaatt::

        A vector containing 141 observations.

   DDeessccrriippttiioonn::

        This data set gives the lengths  (in miles) of 141
        "major" rivers in North America, as compiled by the US
        Geological Survey.

   SSoouurrccee::

        World Almanac and Book of Facts, 1975, page 406.

   RReeffeerreenncceess::

        McNeil, D. (1977).  Interactive Data Analysis.  New
        York: Wiley.

