This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Statistical method of calculate_ death rate among two population with different age groups? \nSelect and explain. \nA. Crude death rate, B. Standardized death rate, C. Case fatality rate, D. Age specific death rate', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Standardized death rate o Age adjustment or age standardization removes the confounding effect of different age structures of two different population and yields a single standardized rate, by which the moality experience can be compared directly.", 'role': 'assistant'}]