Final answer:
Analytical thinking is the leadership trait that involves weighing pros and cons for optimal decision-making, helping reduce team anxiety, and is crucial for leadership across various settings.
Step-by-step explanation:
The leadership trait that is achieved by weighing the pros and cons to arrive at an appropriate decision is analytical thinking. This trait involves processing abstract information, anticipating situations that have not yet arisen, and making informed decisions that consider the collective good.
Leaders with strong analytical thinking skills are vital for reducing frustration and anxiety, as they make quick decisions that are well thought out and consider all potential outcomes. These leaders exhibit a dedication to making informed decisions that contribute to the success of their teams, whether in a classroom, workplace, or sports team.