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Homework Help: General uncertainties question - type B

  1. Jul 19, 2012 #1
    1. The problem statement, all variables and given/known data

    i am trying to quanify uncertainties..

    2. Relevant equations

    3. The attempt at a solution

    For type B uncertainties I have calibration of the oscilloscope, scale reading of the ocilloscope and the uncertaninty of the setup, with associated percentage errors of 2.5%, 1.5% and 3%. I now need to determine whether they follow a normal or rectangular distribution and apply the relevant divisor to my estimated percentage uncertainty. I am unsure how you determine what is normal and what is rectangular. I would assume calibration is normal and scale reading is rectangular? but thats a guess and I have no idea about the uncertainty of the set up ( this includes things like everything is in a straight line etc) Can anyone tell me how I go about coinfidently assigning which probability distribution each one has?

  2. jcsd
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