in the context of probability, mutually exclusive events are two separate events which cannot both occur, if EVENT 1 happens then EVENT 2 cannot occur. For example, if you flip a heads on a coin, it is impossible to flip a tails at the same time.

MUTUALLY EXCLUSIVE EVENTS: "Mutually exclusive events are actions which simply cannot both occur, for example- if EVENT A happens, then EVENT B cannot happen and vice versa."
Cite this page: N., Pam M.S., "MUTUALLY EXCLUSIVE EVENTS," in, April 7, 2013, (accessed May 10, 2021).