This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Statistical Graphs, Correlation, Locations, 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: Histogram: - Is graphical presentation for 'continuous quantitative data' Continuous groups are marked on X-axis (abscissa) while frequencies are marked on y -axis (ordinate).