This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostats, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following is example of Nominal variable \nSelect and explain. \nA. Temperature, B. Roll number, C. TNM staging, D. Mid arm circumference', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Roll number is an identity in the class ; Hence it is an example of nominal variable OTHER EXAMPLES NOMINAL VARIABLES ORDINAL VARIABLES METRIC ABO blood grouping Rh Types of anemia Sex - male/ female etc TNM staging of cancer Hypeension classification Severity of anemia Weight Height Hb Blood sugar levels Serum cholesterol levels BMI Pulse rate Kelvin temperatures', 'role': 'assistant'}]