c. Find the probability that a customer rents at least one DVD. (Give your answer as a decimal) Answer: 0.86

Did you know that the concept of probability has its roots in gambling and games of chance dating back to ancient civilizations? People in the Mesopotamian era were already rolling dice, and mathematicians like Blaise Pascal and Pierre de Fermat laid the groundwork for probability theory in the 17th century! Today, we apply these principles in everyday situations like estimating the likelihood of renting DVDs or even predicting weather patterns. In the real world, probability plays a crucial role in decision-making processes. For businesses, understanding customer behavior and probabilities can enhance marketing strategies and stocking decisions, leading to better sales. For example, if a movie rental business knows the probability that a customer rents at least one DVD is 0.86, they might stock more popular titles to meet the demand accurately. That’s how math meets the marketplace!