system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Mean + 1.96 SD include following % of values in a distribution: September 2012
assistant
The correct answer is  Ans: D i.e. 95% 96 is the approximate value of the 97.5 percentile point of the normal distribution used in probability and statistics. 95% of the area under a normal curve lies within roughly 1.96 standard detions of the mean, and due to the central limit theorem, this number is therefore used in the construction of approximate 95% confidence intervals.