Questions tagged [normal-distribution]

The normal, or Gaussian, distribution has a density function that is a symmetrical bell-shaped curve. It is one of the most important distributions in statistics. Use the [normality] tag for asking about testing for normality.

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Determine confidence level in guesstimate: gas stations in Germany

I read in the internet about the following guesstimate during a job interview for a trading position: Give an estimate for the bid-ask on the number of gas stations in Germany (with max spread of 10 %)...
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What are the values of the draws from the uniform distribution used to create x? [closed]

Any help is greatly appreciated. Please let me know if there is any other information that is needed.
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how to estimate parameters of a normal-gamma distribution from a data sample?

The short version is: how to estimate alpha, beta, kappa and mu of a normal-gamma distribution from a data sample? I've been trying to use this implementation for bayesian inference: https://github....
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What technique to use for non-normally distributed multiple measures data (continuous outcome)?

I have repeated measures data of size around 100 sample, in which a biomarker is measured at different time points. The patients are randomly divided into Placebo and DrugX group. But the outcome (...
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Does it make sense to use t-student distribution for stock returns monte carlo simulation?

If we assume that stock returns are normally distributed and we want to download some of the data of a stock, then we will practically always take only a small part of it (we will not take for example ...
Let us consider two column vectors of random variables ${\bf Y} = (Y_1,\ldots,Y_n)^{\intercal}$ and ${\bf X} = (X_1,\ldots,X_m)^{\intercal}$. The general linear regression model is written as \begin{...