Welcome to the forum.

In a complete graph, each vertex is adjacent to every other vertex, so they all have to have different colors.I have a question regarding the process for finding the chromatic number of a complete graph contraining 16 vertices.

The total number of outcomes is . There are 3 successful outcomes, where the head occurs during the first, second, and third flip, respectively, and the other two flips return tails.Suppose you flip a coin 3 times. What is the probability that exactly 1 of your flips were heads?