Recent content by Lele

  1. L

    Expected Value of X in Binomial Trials

    I think you mean 3 bernoulli trials and not binomial trials. Remember bernoulli trials have just 2 outcomes (1 and 0 in your question). Since you know the 3 digit number (from the SFS or other combinations) just use definition of Expectation. E[X] = Summation (x*P(x)) In your case the x would...
  2. L

    Balls in Boxes, Probability Question

    Hypergeometric One can use the hypergeometic distribution to get to the same result. Using the conditional probability approach, the probabilities (for choosing the black or white ball from box#1 )and the conditional probabilities (of choosing the black or white balls from box#2) are the same...
  3. L

    Factors deciding oligo length ?

    Could someone explain in very basic terms. On research papers it seems like melting point is more significant than the length. Is there any generalization to the length of the probe or it depends from experiment to experiment ? Thanks, lele
  4. L

    Factors deciding oligo length ?

    Hi! All, Here's a specific question I need to address in a Microarray project. 1) Different companies have oligos (oligonucletides) with different lengths. My understanding is, the oligo length should be sample specific. However a glance at company websites tells me that each one has come...
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