The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is used to denote a continuous variable?   (A) Simple bar   (B) Histogram   (C) Pie diagram   (D) Multiple bar
['(B) Histogram <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Simple bar \n (B) Histogram \n (C) Pie diagram \n (D) Multiple bar <> possible answers', '  Which of the following is used to denote a continuous variable? <> context@']