The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Central value of a set of 180 values can be obtained by   (A) 2nd tertile   (B) 90th percentile   (C) 2nd quartile   (D) 9th decile
['(C) 2nd quartile <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 2nd tertile \n (B) 90th percentile \n (C) 2nd quartile \n (D) 9th decile <> possible answers', '  Central value of a set of 180 values can be obtained by <> context@']