The reason why the events "choosing an odd number" and "choosing an even number" are mutually exclusive is; Choice D; a number is either even or odd.
<h3>What are Mutually exclusive events in probability?</h3>
It follows from probability theory, that two events are characterized as mutually exclusive if they cannotboth occur at the same time. A very good example is the set of outcomes of a single die roll, which can result in any of the 6 outcomes.