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: Surgery
If mean, median and mode are 10, 18, 26 respectively, the distribution is : 
Select and explain. 
A. Symmetric, B. Normal, C. Positively skewed, D. Negatively skewed
D: Negatively skewed
Answer: D: Negatively skewed 
Explanation: Negatively skewed For a symmetric curve such as gaussian - mean, median and mode coincide. That is, they are the same value. - A skewed distribution will have different mean, median and mode. In fact, very different values of mean, median and mode is a clear indication of skewness. In positive skew, mean>median>mode. In negative skew, mean<median<mode.