Graph of 180 years of U.S. Immigration data. 
                                   --  THE ANSWERS

                               

                              

(I'm sorry, but this program (Front Page) does not have magnifier that is convenient in Word.)

    32    The independent variable above is displayed along the __ X__ axis.

    33.   The independent variable is really due to several factors (political, economic, ecological etc.)
             implied (not really displayed) as __ TIME __ in units of   D E C A D E S.

    34.   The dependent variable is  P O P U L A T I O N  in units of  M I L L I O N S.

    35.   The dependent variable is displayed along the __  Y __ axis.

    36.   In this graph, does the implied independent variable (#33) cause the affect of a range in
            the dependent variable?  (y/n)   __  NO (It is the underlying economic, political, ecological
            and other factors over the time span of a decade that has influenced rates of immigration.) *

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