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
Birth weight of all 10 babies born an in a nursing home on a day was 2.7 kg. Standard deviation is -
assistant
The correct answer is  Standard deviation is a measure of dispersion from central value.
In the question, there is only one central value (2.7 Kg) as all 10 babies have same weight. Thus, there is no dispersion.