7. A bank manager estimates that an average of two customers enter the tellers' queue every five minutes. Assume that the number of customers that enter the tellers' queue is Poisson-distributed. What is the expected value (mean) What is the variance What is the standard deviation What is the probability that less than two customers enter the queue in a randomly selected five-minute period? Suzie's Flowers purchases a wide variety of houseplants. One of Suzie's favorites, the large split leaf rose, costs $13.50 from the wholesaler and requires an additional $1.00 per plant to take care of and then package prior to sale. Suzie's normal markup on houseplants is 35%. What would be the retail selling price of a large split leaf rose? Please round answer to the nearest cent (two decimal places)