Using the probability concept, it is found that there is a 0.00024 = 0.024% probability of guessing the right number at random.
A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem:
Then:
[tex]p = \frac{1}{8^4} = 8^{-4} = 0.00024[/tex]
0.00024 = 0.024% probability of guessing the right number at random.
You can learn more about probabilities at https://brainly.com/question/15536019