What must be present in order to say that a correlation exists?
O
A. A wish to identify cause and effect
O
B. A desire for change
O
C. A relationship between variables
O
D. An opinion that things are the same

C. A relationship between variables must be present in order to say that a correlation exists

Explanation:

To establish a correlation one must first understand that the correlation is a relative term in that it can only be established between two entities that are essentially changing in reference to something,

Only in their change can a pattern be established that can then be worked upon as a correlation.

Thus a relationship between certain variables must exist for something to be a correlation and not simply a connection drawn,

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