Question

fill in the blank.
events that are ______ cannot occur at the same time.

events that are dropdown with options: disjoint, independent, unusual, double - counted cannot occur at the same time.

Explanation:

To solve this, we analyze each option:

• "Disjoint" events (also called mutually exclusive) have no common outcomes, so they can't occur simultaneously.
• "Independent" events are about one event not affecting the probability of the other, not about simultaneous occurrence.
• "Unusual" refers to events with low probability, not about co - occurrence.
• "Double - counted" is about counting errors, not event occurrence.

So the correct term is "disjoint".

Answer:

disjoint