What does r represent in the Hamilton's rule?

Question

Quizplus · Accepted Answer

The coefficient of relatedness (r) represents the probability that two individuals share the same allele due to their genetic relationship. Hamilton's rule, which describes the circumstances under which altruistic behavior will evolve in a population, includes the term Br - C > 0, where B is the benefit to the recipient, r is the coefficient of relatedness, and C is the cost to the actor. Therefore, r is a crucial factor in determining the evolution of altruistic behavior.

What Does R Represent in the Hamilton's Rule