The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Measuring variation between two different units is done through   (A) Variance   (B) Standard deviation   (C) Coefficient of variation   (D) Range
['(C) Coefficient of variation <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Variance \n (B) Standard deviation \n (C) Coefficient of variation \n (D) Range <> possible answers', '  Measuring variation between two different units is done through <> context@']