Final answer:
The probability -0.86 indicates a value on a number line. However, probabilities cannot be negative. Probabilities range from 0 to 1, where 0 represents an impossibility and 1 represents a certainty.
Step-by-step explanation:
The probability -0.86 indicates a value on a number line. However, probabilities cannot be negative. Probabilities range from 0 to 1, where 0 represents an impossibility and 1 represents a certainty.
Therefore, a negative probability is not possible and could be considered an error or an incorrect calculation.
It is important to check the calculation or the context in which the probability is given to determine if there has been a mistake.