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...
From past experience, the supervisor of a coffee shop has found that 80% of customers entering the shop will order coffee and 30% of customers entering the shop will order snacks. It was also found that 20% of customers entering the shop would order coffee and snacks together. (a) What is the probability that a customer entering the shop will either order coffee or snacks? (b) What is the probability that a customer entering the shop will not order coffee...
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.
At Pierre’s Coffee Shop, 65% of customers order coffee, 20% order tea, and 11% order fruit juice, while 4% do not order anything to drink. In addition, 39% order a muffin, 26% order a bagel, and 23% order a Danish, while 12% do not order anything to eat. Finally, 8% of customers order both tea and a Danish, and 47% of people order fruit juice given that they have ordered a muffin. Assume that an individual customer will not order...