Statistics

This subject has been very interesting for me. It is one of those subjects which cleverly abstracts pragmatism.
Consider a simple scenario. Though unrealistic, imagine yourself standing with one foot in boiling water (100 degree celsius) & the other in ice (0 degree celsius). Now only you know the pain you are having while standing. However as per statistics, the calculation of your body temperature would be a simple average i.e. (0+100)/2 = 50 degree, a fairly ok body temperature.