A survey was conducted in respect of marital status and success in examinations. Out of 2000 persons who appeared for an examination, 80% of them were boys, and the rest were girls. Among 300 married boys, 140 were successful, 1,100 boys were successful among unmarried boys: In respect of 100 married girls 40 were successful. 200 unmarried girls were successful. Construct two separate nine-square tables, and find out Yule's coefficient of Association to discuss the association between marital status and passing of examination.

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