P(purchased a cup of coffee given purchased a piece of cake)
=P(purchased both a cup of coffee and a piece of cake)/P(purchased a piece of cake)
=0.20/0.40
=0.50
6. Suppose that, of all the customers at a coffee shop, 70% purchase a cup of...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 310cups and a standard deviation of 21cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 180 doughnuts and a standard deviation of 11....
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 320 cups and a standard deviation of 24 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation...
Survival Analys.. At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut The shop owner believes that the number of cups he sells each day is normal distributed with a mean of 330 cups and a standard deviation of 23 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 180 doughnuts and a...
At a coffee shop, 80% of customers purchase a drink, 40% purchase something to eat, and 20% purchase both a drink and something to eat. 1. What fraction of customers purchase only a drink? 2. Given that someone bought something to eat, what is the probability they also got a drink? 3. Given that someone bought a drink, what is the probability they didn’t buy anything to eat?
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 330 cups and a standard deviation of 21 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 130 doughnuts and a standard deviation...
At a coffee shop, 80% of customers purchase a drink, 40% purchase something to eat, and 20% purchase both a drink and something to eat. 3. (a) What fraction of customers purchase only a drink? (b) Given that someone bought something to eat, what is the probaility they also got a drink? (c) Given that someone bought a drink, what is the probability they didn't buy anything to eat?
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 340 cups and a standard deviation of 21 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation...
Starbucks has found that 26% of customers purchase more than one cup of coffee per day form their shops. Suppose you randomly choose 190 of today's Starbucks customers Find the probability that no less than 30% of them purchased more than one cup of coffee from Starbucks.
i. Suppose at a particular coffee shop, 80% of the cups of coffee are sold before noon. If the coffee is purchased before noon, there's a 90% chance it's regular (and a 10% chance it's decaf). If the coffee is purchased after noon, there's a 35% chance it's decaf. (a) What's the probability that a randomly selected coffee purchase is decaf? (b) If we learn that a certain purchased cup of coffee was decaf, what's the probability that the purchase...
In an Italian breakfast café, a waitress has observed that 80% of her customers order coffee while the other 20% order a different drink. If a customer orders coffee, there is a 0.42 probability the customer will also order biscotti. On the other hand, only 15% of customers who ordered a different drink also order biscotti. Let B = a randomly selected customer orders biscotti and C- a randomly selected customer orders coffee a) Create EITHER a hypothetical two-way table...