# Question: The mean number of water main breaks is 4 per

The mean number of water main breaks is .4 per hour. In a 10-hour night shift, four mains break. What is the probability of exactly four mains breaking? Of four or more breaking? Which probability tells you the most about the chance of this situation happening?

**View Solution:**## Answer to relevant Questions

The Bureau of Paperwork has 1,000 employees, and the personnel division wants to know whether agency personnel prefer to use HMOs for their health care benefits. If more than 25% favor using HMOs, then the bureau will begin ...In Berksdale, Nebraska, the mean number of major fires is .071 on any given day. What is the probability that no major fires will occur in Berksdale in any given week (7 days)? What is the probability that more than four ...From past records the Department of Treasury knows that an average of three savings and loans fail per week. Last week six failed. How likely is this event? What is the probability that no savings and loans would fail in a ...During the past year, on the average 289 books were checked out daily from the public library in Stucco, Wyoming. This year, the city fathers of Stucco have attempted to increase circulation through various promotions such ...The Wisconsin State Court system wants to assess the impact that punitive damages have on large tort awards. Using the court systemâ€™s computer, 16 cases were selected at random from all those cases in which damages of $ 1 ...Post your question