Thank you for your reply.
What I am trying to do is to solve the ODE without randomness. Then to solve it with random A(t,r)= A+r to see the effect of randomness in the solution.
Plot both solution in on figure. I should have an area between the two plots that area represents the ranges of the 95% confidence intervals between highest and lowest simulation result at each time interval based on for example:100 runs.
Yes confidence=0.95 seams to be ignored. I read that the default actually is 95% confidence intervals in maple so I think we do not need that.
100 to have like 100 simulation.
Yes that is right I misspelling them and it just run fine which means they are ignored.