Open links in new tab
  1. probability - Distribution of Event Times in a Poisson Process ...

    Sep 5, 2024 · Normally, everyone talks about the distribution of interarrival times in a Poisson Process are Exponential ... but what about the distribution of the actual event times?

  2. Why is Poisson regression used for count data?

    Poisson distributed data is intrinsically integer-valued, which makes sense for count data. Ordinary Least Squares (OLS, which you call "linear regression") assumes that true values are normally distributed …

  3. probability - Cumulative Distribution function of a Poisson ...

    Sep 18, 2019 · This is because the CDF of Poisson distribution is related to that of a Gamma distribution. Hence the incomplete gamma function.

  4. Relationship between poisson and exponential distribution

    Note, that a poisson distribution does not automatically imply an exponential pdf for waiting times between events. This only accounts for situations in which you know that a poisson process is at …

  5. Poisson or quasi poisson in a regression with count data and ...

    I have count data (demand/offer analysis with counting number of customers, depending on - possibly - many factors). I tried a linear regression with normal errors, but my QQ-plot is not really goo...

  6. Finding the probability of time between two events for a poisson process

    May 25, 2015 · The logic here seems obvious: The probability of a given wait time for independent events following a poisson process is determined by the exponential probability distribution $\lambda …

  7. How to calculate a confidence level for a Poisson distribution?

    How to calculate a confidence level for a Poisson distribution? Ask Question Asked 14 years, 3 months ago Modified 10 months ago

  8. Derivation of the variance of the Poisson distribution

    Oct 13, 2022 · Is this derivation of the Poisson variance correct? I mainly want to make sure I'm applying the Law of the Unconscious Statistician (LOTUS) correctly. $ Var[X] = E[X^2] - E[X]^2 $ $ = E[X^2] - \\

  9. What is the relationship between poisson, gamma, and exponential ...

    Jun 26, 2015 · Poisson and exponential distributions are very strongly related but they're fundamentally different because the Poisson is discrete (a count variable) and the exponential is continuous (a …

  10. Magical relationship between Exponential distribution and Poisson …

    Dec 10, 2023 · 1 I will give an intuitive explanation, only needing the defining properties of the Poisson Process and the exponential distribution, without needing any calculations involving densities. In …