Assertion (A): For two attributes A and B, if (AB) > (A)(B)/N, they are positively associated. Reason (R): Positive association means they occur together more often than expected under independence. Choose the correct option:
A. Both A and R are true, but R is not the correct explanation of A
B. Both A and R are true, and R is the correct explanation of A
C. A is true, R is false
D. A is false, R is true
Answer: Option B
Solution (By JKSSB Mock Tests)
If observed joint frequency exceeds the expected under independence, it indicates positive association. R explains A perfectly.
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