Research cited in the text found an association between number of Facebook friends and the density of the gray matter in a brain area important to social interaction.This association is MOST likely a(n)_____ correlation.

Question

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The text states that there is an association between number of Facebook friends and the density of gray matter, and it is likely a positive correlation since the more Facebook friends a person has, the larger the brain area important to social interaction.

Research Cited in the Text Found an Association Between Number