Part II: Episodes of "Dr. Therrien's Water Management Saga" Dr. Therrien is a researcher who works in freshwater management. The following questions were inspired by different aspects of Dr. Therrien's research work, such as how to conserve freshwater in agricultural and municipal water systems... FIRST EPISODE (Dr. Therrien): According to the Government of Canada, 20% of municipal drinking water is lost to leaks. Therefore, you are invited to help Dr. Therrien study events related to leaks... 6-a) Assume that in Ville de Montreal, there are 2 leaks on average per 5 km of water pipelines. In these conditions, if a construction company has to dig up 1 km of the road (exposing 1 km of water pipelines) for a given project, what is the probability that they will discover at least 1 leak? 6-b) A construction company in Ville de Montreal exceeds budget on a project when they must stop working because they need to repair at least one water leak. If the company has 5 ongoing projects and each project involves digging up 1 km of road (as in Question 6-a), what is the probability that the company exceeds budget for 3 of the 5 projects