Little_Louis
New member
- Joined
- Mar 26, 2022
- Messages
- 15
I sat an online test at work, and there were a few questions I couldn't answer. Here is one of them...
Question: Leaks in an underground water pipe are known to occur randomly over its 10km length. Which of the following is the distribution of the distance of a newly discovered leak from the start of the water pipe?
Choose one of the following options (my comments are in bold):
I'm trying to work out which distribution it could be. First of all from the question, I can see it's about distance, it's bounded by 0 and 10km. Each event is independent. So I think this is a continuous uniform - any leak can spring up randomly at any point over the 10km distance. I can't decide from the question whether we just get one leak in one place at random. Thank you for your help in advance
Question: Leaks in an underground water pipe are known to occur randomly over its 10km length. Which of the following is the distribution of the distance of a newly discovered leak from the start of the water pipe?
Choose one of the following options (my comments are in bold):
- Continuous uniform - random outcome that lies between certain bounds
- Normal - number of data points clustering around an average
- Exponential - time to event, at a constant average rate (usually failure rate, expected time for event to occur)
- Poisson - Number of events occurring in a fixed interval (distance/time/space)
I'm trying to work out which distribution it could be. First of all from the question, I can see it's about distance, it's bounded by 0 and 10km. Each event is independent. So I think this is a continuous uniform - any leak can spring up randomly at any point over the 10km distance. I can't decide from the question whether we just get one leak in one place at random. Thank you for your help in advance