I 1 Point Question 7 Polsson. Less than or e Customers enter a local coffee shop independently with an expected value of 20 customers per hour What is the probability of the coffee shop singless than or equal to 18 customers in an hour? Hint Independent arrivals with mean follow a Poisson Distribution 40.145 B) 39.14 38.16 D) 37.145 Question 8 1 Point Poisson Greater than Orders for Apple stock arrive at me NASDAQ exchange at a rate of 5 per second on average What is the probability of the NASDAQ Exchange receiving more than 4 orders for apple stock in one second? Hint independent arrives with fixed mean follow a Poisson Distribution 65.95 60.95 55.95 50.95 Question 9 1 Point Poisson-Greater than or equal Students tog into blackboard at an average rate of 12 per weekday, and their logins are independent on days when the profesor doesn't post any new material On any given weekday where the professor doesn't post any new what is the probability that at least 15 students of 16 or 17 r.) log into blackboard Hinc independent arrives with twed can follow a Poisson Distribution A 3. 28.09 22