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
Histogram is used to describe - 
Select and explain. 
A. Quantitative data of a group of patients, B. Qualitative data of a group of patients, C. Data collected on nominal scale, D. Data collected on ordinal scale
A: Quantitative data of a group of patients
Answer: A: Quantitative data of a group of patients 
Explanation: Ans. is 'a' i.e., Quantitative data of group of patients