Two students have started a business to seal driveways during the summer months. They rent a pickup truck and a power sprayer. With this they will use a tar based spray to seal asphalt driveways. Past experience has shown that the best time to sign up customers is to ring their doorbells between 5:00 and 8:00 p.m. on any weekday evening. Any jobs that they obtain will be completed the next day. In the months of June, July and August they find that they get an average 2 customers per hour ringing doorbells. PLEASE USE 4 DECIMAL PLACES IN THE ANSWERS. a) What is the probability that they will get from 5 to 9 jobs in an evening of soliciting? The probability that they will get from 5 to 9 jobs in an evening of soliciting is b) They charge $25 per driveway. If the truck costs $50 per day, and the spraying equipment costs $20 per day and the material to seal one driveway costs $5, what is the probability that they will make a profit on any given day. The probability that they will make a profit on any given day is