Uniform Distribution Problem on Efficiency











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A bus travels between two cities $A$ and $B$ which are $100$ miles apart. If the bus has a breakdown, the distance from the breakdown to city A has a Uniform Distribution over $(0,100)$. There is a bus service station in city $A$, city $B$ and in the center of the route between $A$ and $B$. It is suggested that it would be more efficient to have the three stations at $25,50$ and $75$ miles, respectively, from $A$.



The question asks if the second arrangement is more efficient, I know how to calculate the probabilities, my intuition tells me that the second system is better, but can’t seem to come up with a way to conclusively state that either one will be better, can anyone help?










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  • Perhaps you should try to calculate the expected value for the distance between the disabled bus and the nearest service station for the two cases.
    – Dean
    Nov 27 at 16:43















up vote
1
down vote

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A bus travels between two cities $A$ and $B$ which are $100$ miles apart. If the bus has a breakdown, the distance from the breakdown to city A has a Uniform Distribution over $(0,100)$. There is a bus service station in city $A$, city $B$ and in the center of the route between $A$ and $B$. It is suggested that it would be more efficient to have the three stations at $25,50$ and $75$ miles, respectively, from $A$.



The question asks if the second arrangement is more efficient, I know how to calculate the probabilities, my intuition tells me that the second system is better, but can’t seem to come up with a way to conclusively state that either one will be better, can anyone help?










share|cite|improve this question






















  • Perhaps you should try to calculate the expected value for the distance between the disabled bus and the nearest service station for the two cases.
    – Dean
    Nov 27 at 16:43













up vote
1
down vote

favorite









up vote
1
down vote

favorite











A bus travels between two cities $A$ and $B$ which are $100$ miles apart. If the bus has a breakdown, the distance from the breakdown to city A has a Uniform Distribution over $(0,100)$. There is a bus service station in city $A$, city $B$ and in the center of the route between $A$ and $B$. It is suggested that it would be more efficient to have the three stations at $25,50$ and $75$ miles, respectively, from $A$.



The question asks if the second arrangement is more efficient, I know how to calculate the probabilities, my intuition tells me that the second system is better, but can’t seem to come up with a way to conclusively state that either one will be better, can anyone help?










share|cite|improve this question













A bus travels between two cities $A$ and $B$ which are $100$ miles apart. If the bus has a breakdown, the distance from the breakdown to city A has a Uniform Distribution over $(0,100)$. There is a bus service station in city $A$, city $B$ and in the center of the route between $A$ and $B$. It is suggested that it would be more efficient to have the three stations at $25,50$ and $75$ miles, respectively, from $A$.



The question asks if the second arrangement is more efficient, I know how to calculate the probabilities, my intuition tells me that the second system is better, but can’t seem to come up with a way to conclusively state that either one will be better, can anyone help?







probability probability-distributions uniform-distribution






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asked Nov 27 at 15:01









user601297

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  • Perhaps you should try to calculate the expected value for the distance between the disabled bus and the nearest service station for the two cases.
    – Dean
    Nov 27 at 16:43


















  • Perhaps you should try to calculate the expected value for the distance between the disabled bus and the nearest service station for the two cases.
    – Dean
    Nov 27 at 16:43
















Perhaps you should try to calculate the expected value for the distance between the disabled bus and the nearest service station for the two cases.
– Dean
Nov 27 at 16:43




Perhaps you should try to calculate the expected value for the distance between the disabled bus and the nearest service station for the two cases.
– Dean
Nov 27 at 16:43















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