The number of customers arriving at a department store in a 5-minute period has a binomial distribution.

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A binomial distribution requires that each trial has only two possible outcomes (success or failure) and the probability of success remains constant from trial to trial. In the case of customers arriving at a department store, there are more than two possible outcomes (e.g. some may buy something while others may not), and the probability of a customer arriving may not be constant over time (e.g. it may be higher during certain times of day or on certain days of the week). Therefore, a binomial distribution would not be appropriate to model this situation.

The Number of Customers Arriving at a Department Store in a 5-Minute