A Correlation of Zero Between Two Quantitative Variables Means That

question 33

Multiple Choice

A correlation of zero between two quantitative variables means that

• A) re-expressing the data will guarantee a linear association between the two variables.
• B) we have done something wrong in our calculation of r.
• C) there is no linear association between the two variables.
• D) none of these
• E) there is no association between the two variables.

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Definitions:

Global Warming

Increasing global atmospheric and oceanic temperatures as measured or inferred from some point in the past to the present.

Lithosphere

The rigid outer layer of the earth, including the crust and upper mantle, which is divided into tectonic plates.

Biosphere

The global sum of all ecosystems, including all living organisms and their relationships to each other and to their environments.

Groundwater

Water that occurs in the pores, fractures, and cavities in the subsurface.