In mathematics and statistics, the term arithmetic mean is preferred over simply mean because it helps to differentiate between other means such as geometric and harmonic mean. Statistical mean is the most common term for calculating the mean of a statistical distribution.
There were, in my opinion, two main reasons for this: 1  I believe that Dr. King believed that nonviolence was a more moral strategy than one that included violence. 2  King also believed that nonviolence was a more effective way to get people on the side of the protestors.
King lead a non-violent protest in the Montgomery bus boycott which I feel was his most important role in the event. The most major act of terrorism on the black protesters was the bombing of King's home on January the 30th 1956. His wife and their baby daughter escaped without injury.