Seventy percent of customers at the snack counter of a movie theater buy drinks. Among those who buy drinks, 30% also purchase popcorn. What’s the probability that a customer at the counter buys a...

Seventy percent of customers at the snack counter of a movie theater buy drinks. Among those who buy drinks, 30% also purchase popcorn. What’s the probability that a customer at the counter buys a drink and popcorn? Theaters use this type of calculation to decide which products should be bundled to appeal to customers.