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
Standard errors of mean, all are true except ? 
Select and explain. 
A. Increases with increased number of samples, B. Based on normal distribution curve, C. Measure the confidence limit, D. Standard detion
A: Increases with increased number of samples
Answer: A: Increases with increased number of samples 
Explanation: Ans. is 'a' i.e., Increase with sample size increase