# Question

In older cities across North America, infrastructure is deteriorating, including water lines that supply homes and businesses. A report to the Toronto city council stated that there are on average 30 water line breaks per 100 kilometers per year in the city of Toronto. Outside of Toronto, the average number of breaks is 15 per 100 kilometers per year.

a. Find the probability that in a stretch of 100 kilometers in Toronto there are 35 or more breaks next year.

b. Find the probability that there are 12 or fewer breaks in a stretch of 100 kilometers outside of Toronto next year.

a. Find the probability that in a stretch of 100 kilometers in Toronto there are 35 or more breaks next year.

b. Find the probability that there are 12 or fewer breaks in a stretch of 100 kilometers outside of Toronto next year.

## Answer to relevant Questions

The number of bank robberies that occur in a large North American city is Poisson distributed with a mean of 1.8 per day. Find the probabilities of the following events.a. Three or more bank robberies in a dayb. Between 10 ...The number of users of an automatic banking machine is Poisson distributed. The mean number of users per 5-minute interval is 1.5. Find the probability of the following events.a. No users in the next 5 minutesb. Five or ...The distribution of the number of home runs in soft-ball games is shown here.a. Calculate the mean number of home runs.b. Find the standarddeviation.It is recommended that women age 40 and older have a mammogram annually. A recent report indicated that if a woman has annual mammograms over a 10-year period, there is a 60% probability that there will be at least one ...We are given the following probability distribution.a. Calculate the mean, variance, and standard deviation.b. Suppose that Y = 3X + 2. For each value of X, determine the value of Y. What is the probability distribution of ...Post your question

0