![Definition of mutually exclusive events](https://maths.olympiadsuccess.com/assets/images/maths_square_dictionary/mutuallyexclusiveevents.jpg)
These are events that can never happen at the same instance. Example: consider a pack of playing cards. Kings and Aces are Mutually Exclusive because a card can't be an Ace and a King at the same time. However, Kings and Hearts are not Mutually Exclusive