This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
[{'content': 'In a population of pregnant female, Hb is estimated on 100 women with standard detion of 1 gm%. The standard error is- \nSelect and explain. \nA. 1, B. 0.1, C. 0.01, D. 10', 'role': 'user'}, {'content': 'Answer: B \nExplanation: <p> standard error of mean = standard detion/[?]n =1/10 =0.1 Parks textbook of preventive and social medicine.K Park. Edition 23.Pg no: 850</p>', 'role': 'assistant'}]