Final answer:
The numbers that cannot possibly be a probability are 3.5 and 0.
Step-by-step explanation:
A probability is a measure of the likelihood of an event occurring, and it must be between 0 and 1, inclusive.
Therefore, any number that is outside of this range cannot possibly be a probability. Let's analyze each option:
a. 5/6:This fraction represents the probability of an event happening with 5 chances out of 6. Since it is a fraction between 0 and 1, it could be a probability.
b. 3.5:This number is greater than 1, so it cannot be a probability. It is a raw value that does not represent the likelihood of an event.
c. 0:This number represents no chance or impossibility of an event occurring, so it is a valid probability.