The manager of an online shopping website has determined that an average of 6 customers per minute make a purchase on Saturdays. The manager believes that each customer's purchase is independent and has decided to model the number of purchases per minute using a Poisson probability distribution. What is the probability that more than 3 purchases will be made during a one-minute interval on Saturday? Time left 1:56:45 Select one: 0.6831 0.8488 0.6678 0.8047