I am resitting CT4 and on the exam I failed, I know I got a question wrong because I remembered this past paper question, where the process '...may occupy either of two states during alternating random exponential periods with respective intensities ...'. When doing the past paper, the intensities were back to front - so I did this on the exam with a normal question!! I gather that this means that the transition intensities are the opposite way around to what you would expect, but I don't understand why. Can anyone enlighten me?
