Using the probability concept, it is found that:
P(board-certified or teacher) = 0.8462.
A probability is given by the number of desired outcomes divided by the number of total outcomes.
Researching the problem on the internet, it is found that:
Then:
[tex]p = \frac{33}{39} = 0.8462[/tex]
Hence:
P(board-certified or teacher) = 0.8462.
You can learn more about the probability concept at https://brainly.com/question/15536019