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An Economist Noticed That Nations with More TV Sets Have

Question 7

Multiple Choice

An economist noticed that nations with more TV sets have higher life expectancies.He established with a scatterplot a high positive correlation between length of life and number of TV sets.Find the lurking variable,if there is one.


A) Sofa
B) TV sets brands
C) Popcorn
D) Wealth of the nation
E) No lurking variable

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