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Homework Help: Let X be a positive variable with E(X) =5 and E(X)^2 =31.25

  1. Jul 9, 2009 #1
    Please find an upper bound for P(X>=10) using Markov's and Chebyshev's

    Please state which is which. I'm not very good at stats and this is a homework problem :P

  2. jcsd
  3. Jul 9, 2009 #2


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    Staff: Mentor

    Welcome to the PF, Matt. We require that you show the relevant equations and your attempt at a solution, before we can offer you tutorial help.

    Please show us how you would start this problem's solution...
  4. Jul 9, 2009 #3
    That's where i 'm a little lost on this one. I have no start but i need to learn how to at least. Step by step i guess.

    I hope that's somewhat acceptable by your guy's terms :)
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