

   TThhee WWoorrlldd''ss TTeelleepphhoonneess

        data(phones)

   FFoorrmmaatt::

        A matrix with 7 rows and 8 columns.

   DDeessccrriippttiioonn::

        The number of telephones in various regions of the
        world (in thousands).  The columns of the matrix give
        the figures for a given region, and the rows the fig-
        ures for a year.

        The regions are: North America, Europe, Asia, South
        America, Oceania, Africa, Central America.

        The years are: 1951, 1956, 1957, 1958, 1959, 1960,
        1961.

   SSoouurrccee::

        AT&T (1961).  The World's Telephones.

   RReeffeerreenncceess::

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

