Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Probability and confidence level

  1. Jun 28, 2005 #1
    frequentistic probability and confidence level

    a)
    I have three variables,
    1.probability,
    2.confidence level(or interval) and
    3.time.
    is there a formula that include all these three variable?

    b)
    Frequentistic probability is interpreted as the frequency of qccurences of outcomes of stochastic experiments. Is there any formula for this?
     
    Last edited: Jun 28, 2005
  2. jcsd
  3. Jun 30, 2005 #2

    radou

    User Avatar
    Homework Helper

    b) the a posteriori definition of probability states that if an experiment
    posesses the property of statistic stability of relative frequences, then we
    define the probability of an outcome of an experiment A as a real number
    P(A) [tex]\in[/tex] [0, 1]. The relative frequences are of form
    [tex]\frac{n_{a}}{n}[/tex], where [tex]n[/tex] is the number of repetitions
    of the experiment we made, and [tex]n_{a}[/tex] is the number of outcomes A of the experiment which were of interest to us. For a big [tex]n[/tex],
    [tex]\frac{n_{a}}{n}[/tex] should gather around a real number P(A),
    which we call the probability of a outcome A. But, this definition of
    probability is mathematically inconsistent, because the relative frequences
    don't necessarily have to converge.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Probability and confidence level
  1. Probability, The AND (Replies: 19)

  2. Probability Question (Replies: 4)

  3. Probability Question (Replies: 6)

Loading...