Answer: An event with probability 0 is said to be impossible
An event with probability 1 is said to be certain
Step-by-step explanation:
Your answer A should be impossible and for B it should be certain.
If the probability of occurrence of an event is 0, such an event is called an impossible event and if the probability of occurrence of an event is 1, it is called a certain event.
I hoped this helped :)
