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Test the significant difference between chi-square for attributes.

Are teens' attitudes toward trying cocaine dependent on their GPA? Using data from the MTF 2006, test whether attitude toward trying cocaine is independent of high school GPA (∝ = 0.01). How is this relationship different from the bi-variate relationships?

Attitude Toward	GPA
Trying Cocaine	2.0 or less	3.0	4.0	Total
Don't disapprove	24	30	15	69
Disapprove	28	31	27	86
Strongly disapprove	82	187	182	451
Total	134	248	224	606

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Statistics and Probability, Statistics

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