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 Math or robotic genious wanted!!!
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Posted on 04-24-09 3:30 PM     Reply [Subscribe]
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hi, can anyone solve this equation, as I am really dumb in maths.... help will be really appreciated..

thanks in advance

Given a RoboCup field of size 12x20 meters, two robots are placed at random positions. We
would like to know the expected distance between both of them. The position of robot1 can be
expressed by two random variables X1 and Y1; the position of robot2 by X2 and Y2.
X1, X2 are uniformly distributed over [0, 12]
Y1, Y2 are uniformly distributed over [0, 20]
We can define a new random variable D expressing the distance between both robots by D = sqrt(
(X2 - X1)2 + (Y2 - Y1)2 ).

 -> What is the expected value of X1, i.e. E(X1)? How can the expected value of D be determined, either by an equation or approximated on a computer perhaps?

 
Posted on 04-24-09 3:38 PM     Reply [Subscribe]
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Sorry not to be able to help but just piece of advice if this is homework for one of the courses you are taking. Drop out. If you are really dumb in maths, you have no business taking this course.


 


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