From the given values, let's determine the probability value which indicates an event that is unlikely to happen.
Probability can be said to be the possibility of an event occuring.
Probability of a event ranges from 0 to 1.
The closer the probability is to 0 to more unlikely the event is to happen.
The probability of an event cannot be a negative value.
This means -1.0 and -0.3 are incorrect.
The probability value that indicates an event is unlikely to happen is 0.2 .
ANSWER:
0.2