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 isK A company that translates books between various languages is currently testing a computer-based translation service. The founder of the company expects the computer program to make some errors, but then so do human translators. The computer error rate is supposed to be an average of 2 per 500 words of translation. Suppose the company founder randomly selects a 1,500-word passage. Assume that the Poisson distribution applies and that the computer error rate is actually 2 errors per 500 words. Complete parts a through d. a. Determine the probability that no errors will be found. The probability is 0.0025 . (Round to four decimal places as needed.) b. Calculate the probability that more than 12 errors will be found. The probability is . (Round to four decimal places as needed.)