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Probability theory

  1. Jun 2, 2009 #1
    For a random value X~Bi(5,0.2) evaluate the probability of X<4.
    Any ideas?
    What is Bi?
     
  2. jcsd
  3. Jun 2, 2009 #2
    Other things i want to evaluate about the random value X~Bi(5, 0.2):
    1) M[2-3x]
    2)D[2-3x]
     
  4. Jun 2, 2009 #3

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    Hey, it's your problem. You should be the one who knows what terms and symbols you are using! If I had to guess, it would be that "Bi(5, 0.2)" is the binomial distribution with and event with probability of success 0.2 repeated 5 times. I would also guess that "M" is the mean value and D is "standard deviaton". But again, it is your course. Those terms should be defined in your text or notes.
     
  5. Jun 2, 2009 #4
    thank you, i'll check it all out )
     
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