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The following table shows the frequency distribution for a group
of n = 200 students who were classified in terms of personality
(introvert, extrovert) and in terms of color   
preference (red, yellow, green, or blue). Do the data indicate a
significant relationship between the two variables? Test with
α=.05.

           Red = 10
Yellow = 3 Green = 15 Blue = 22

Red = 90 Yellow = 17 Green = 25 Blue = 18

   Introvert   50

   Extrovert   150

       100     
20          40   40
       n = 200