Answer:
A and B are __________.mutually exclusive.
Step-by-step explanation:
Given that in the experiment of a single roll of a 6-faced die, if the outcome "3 shows up" is called event A and the outcome "4 shows up" is called event B,
We know that a die has six faces and at a time only one face can be shown up.
If fair die the numbers on the die 1,2,3.4,5,6 may appear with equal probability 1/6.
If a die shows 3 it cannot show 4 also simultaneously.
In other words 3 and 4 are disjoint events.
These are also called mutually exclusive events and their joint probability is 0 meaning both occurring together is uncertain always
A and B are __________.mutually exclusive.