Among the positions listed, a translator for an international hotel in Las Vegas most likely requires a higher degree of post-secondary education for success. Translators typically need advanced knowledge of multiple languages as well as cultural understanding, which often necessitates formal education such as a bachelor's or master's degree in translation, linguistics, or a related field.
The other positions, while they may require specialized skills and training, typically do not necessitate a higher level of post-secondary education. For example, head chefs often gain expertise through experience and culinary school, while blackjack dealers and yoga instructors may require specific training or certifications but not necessarily advanced degrees.