Final answer:
The probability of a member being both an advanced and intermediate swimmer is zero because these are mutually exclusive categories. A demonstration with catching a ball and hitting water highlights the importance of proper orientation while swimming. The rowboat, swimmers, and water analogy reflects outdated concepts of the luminiferous ether in physics.
Step-by-step explanation:
Understanding Mutually Exclusive Events and Physics Concepts
The probability that a member is both an advanced swimmer and an intermediate swimmer is 0 because being an advanced swimmer and being an intermediate swimmer are mutually exclusive events. A swimmer cannot be both at the same time, much like a billiard ball cannot be in two places at once. In the case of swimming, certain techniques and skill levels define an advanced or intermediate swimmer, and they cannot overlap.
Regarding the physical demonstrations with a ball and water, when catching a ball with 'giving' hands, the hands move in the direction of the moving ball, reducing the impact. Similarly, when the full palm hits water, it creates a large splash or 'belly flop,' which is ineffective and can be painful for a swimmer. In contrast, 'diving' the hand into the water with fingers first creates less resistance and is akin to a streamlined dive, demonstrating that orientation in fluid dynamics is crucial for minimizing impact and resistance.
In the analogy of the rowboat, swimmers, and water, the interpretation reflects the concept of the luminiferous ether, which was a historical theory about the nature of light's propagation. However, this theory has since been disproven by experiments such as the Michelson-Morley experiment that demonstrated that light's speed is constant regardless of the Earth's movement in the 'ether'.