Final answer:
The numbers that could not represent the probability of an event are 1.2 and 2, as probabilities must be within the range of 0 to 1, inclusive.
Step-by-step explanation:
The question is asking which numbers could not represent the probability of an event. Probabilities are numerical values that represent the likelihood of an event happening, and they are always within the range of 0 to 1, inclusive. This means a probability cannot be less than 0 nor greater than 1. A probability of 1 indicates certainty that the event will occur, while a probability of 0 indicates that the event cannot occur.
Given the options:
0.5
1.2
0
2
Option 1) 0.5 is a valid probability, representing a 50% chance that an event will occur. Option 3) 0 is also a valid probability, indicating no chance of an event occurring. However, option 2) 1.2 and option 4) 2 are not valid probabilities because they are outside the range of 0 to 1.
Therefore, the numbers that could not represent the probability of an event are 1.2 and 2.