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Simulating a probability, use a random number?

  1. Mar 4, 2013 #1
    Hello,

    I looking for some advice for a simulation. I know that when an electric car arrives at a destination there is a 70% chance that a charging point will be available. I'm building a model that models electric car journeys. When a car arrives at a destination would I simulate a random number between 0 and 1 and if it is less than 0.7 then a charging post is available or if it is greater than 0.7 then a charging post is not available. Would that make sense? I would appreciate any suggestions or comments.

    Thank you
     
  2. jcsd
  3. Mar 4, 2013 #2

    mathman

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    Gold Member

    Your description is exactly correct for the simulation.
     
  4. Mar 8, 2013 #3
    Hello MAthman,

    Could you perhaps explain the statistical logic/theory for simulating an event like this?

    In an other example, I know the probability that somebody will recharge an electric car is 60%. So if I generate a random number and it is less than 0.6 then the person plugs in and consumes electricity. I'm interested to know the statistical logic behind the method.

    Thanks for your time

    J
     
  5. Mar 8, 2013 #4
    60% of the time somebody charges an electric car.

    60% of the time a (pseudo)-random number between 0 and 1 is less than 0.6.

    So the latter is a good simulation of the former.
     
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