Keystone puts a lot of work into showcasing properties to potential buyers (something like a personal open house). Each showcase results in either a ‘success’ (the buyer purchases the property) or a ‘failure’ (the buyer refuses to buy the property). Historically, Keystone figures that on any given showcase there is a 12% chance they will be successful and make a sale. Keystone has 6 showcases planned for this month, and they would like to explore some
(Guiding questions: What are the chances that exactly 2 of the showcases will result in a sale? What are the chances that they will make at least 2 sales? What are the chances that they will make fewer than 2 sales? What are the chances that a showcase will be successful, given that a potential buyer has asked for a second viewing?)
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- In the last week of the semester, Stéphane decides to “reward” the students by no longer limiting himself to 4 exercises and instead assigning every activity he writes. If a student with a 60% chance of correctly answering an exercise is expected to answer three correctly, what is the probability that Stéphane did not have a visitor that week?arrow_forwardthe sales manager knows that 10% of his clients do not pay their debts in full. He supposes that he selects a sample of 100 clients. What is the probability that 14% or more will not be fulfilled in their obligations?arrow_forward
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