An instructor wishes to see if the way people obtain information is independent of their educational
background. A survey of 400 high school and college
graduates yielded this information. At a 0.05, test the
claim that the way people obtain information is
independent of their educational background.
Television Newspapers Other sources
High school 159
90
51
College
27
31
42

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

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r = 78539458390583095803458309458039485093485 or just 3

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