# Questions tagged [distribution-identification]

Questions about recognizing a probability distribution from a figure, formula, or text description. Please use a specific, informative title.

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### Looking for a good distribution to analyse market dynamics

I'm experimenting with replacement for normal distribution for my models. So far, I tried Gamma and Inverse Gamma distributions. Gamma significantly underestimates the probability of the extreme ...
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### What distribution should my data on sales follow

I'm a chain store and have many stores across the country that all sell a particular shampoo product P. I have made a plot as shown in the image below. For example, 30 stores each sold 1 of P in the ...
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### What kind of distribution is this? (Number of stones until 2 are adjacent in a game of Go)

I've plotted the histogram of the number of stones required so that 2 are adjacent when randomly placed 1 by 1 on a goban (think of a 19x19 chessboard and I place pieces 1 by 1 until 2 are adjacent, ...
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### How to determine which distribution fits my data best?

I have a dataset and would like to figure out which distribution fits my data best. I used the fitdistr() function to estimate the necessary parameters to ...
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### Is there a name for this simple discrete distribution? [duplicate]

I'm just wondering if there's a name for the distribution described by the following p.m.f.: $$p(n) = n(1-s)^{n-1}s^2$$ where $n$ is an integer from $1$ to $\infty$ and $0\lt s\lt1$.
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### Modeling Smooth Decay on Logarithmic Y

I have an empirical distribution that looks like the the image below and I hoping to model it with some parametric distribution. The X axis measures "number of ...
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### What is this distribution? (time-delays between two events)

I have a right-skewed distribution that has this qq-plot against a normal with the same mean and standard deviation: The data are time-delays between two events. Also, this is the histogram of the ...
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### What are alternatives to uniform distribution when trying to fit observed data distribution? [closed]

I have a dataset of 500 observations and I have to find the best fitting distribution. If I look at the histogram of the data and the QQ plot my data seems to follow an uniform distribution. But a chi-...
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### Distribution of values in a time series (tidal data)

I was trying to help my colleague with fitting a distribution curve to some empiric data (these are sea water level observations at different time points). However, I haven't succeeded since it's my ...