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
A non-sysmmetrical frequency distribution is known as - 
Select and explain. 
A. Normal distribution, B. Skewed distribution, C. Cumulative frequency distribution, D. None of the above
B: Skewed distribution
Answer: B: Skewed distribution 
Explanation: None