Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.
Using the probability concept, it is found that:
P(board-certified or teacher) = 0.8462.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
Researching the problem on the internet, it is found that:
- There is a total of 10 + 6 + 5 + 18 = 39 professionals.
- Of those, 15 are board-certified, plus 18 that are non-board certified teachers, hence the number of desired outcomes is 33.
Then:
Hence:
P(board-certified or teacher) = 0.8462.
You can learn more about the probability concept at brainly.com/question/15536019