For this case, we have by definition, the calculation of probabilities:
[tex]probability = \frac {number\ of \favorable\ cases} {number\ of\ possible\ cases}[/tex]
We have 5 possible answers, and we have only one favorable case, that is, only one correct option among the 5 possible answers.
So, we have:
[tex]Probability = \frac {1} {5} = 0.2[/tex]
Answer:
0.2
