The amount of money spent each year on science, space, and technology in the United States (in

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The amount of money spent each year on science, space, and technology in the United States (in millions of dollars) and the amount of money spent on pets in the United States (in billions of dollars) for the years 2000 to 2009 were used to construct the graph below. (The data are from the web site tylervigen.com/spurious correlations, accessed August 28, 2016).

Based on these time series plots, would the correlation coefficient between amount spent on science, space, and technology and the amount spent on pets be positive or negative? Weak or strong? What aspect of the time series plots support your answer?

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Introduction To Statistics And Data Analysis

ISBN: 9781337793612

6th Edition

Authors: Roxy Peck, Chris Olsen, Tom Short

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