# Questions tagged [probability-or-statistics]

Questions about systematic data collection and organization, or the application of probability theory to model the inherent patterns and properties of sampled data, underlying data distribution(s) or random processes.

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### Weighted random choice from a list

I want to randomly choose one element from a list but preferring elements with small distance from the center of a list. How to do it properly say with normal distribution? I am not good at statistics....
15 views

### Geometric randomized data distribution

Suppose we have a map ( geometric surface) with 5 parts or districts with different surface area size, if a certain number of dots randomly distribute on this map, can we predict dots how many dots ...
1 vote
64 views

### How to restrict FindDistribution to real-valued distributions

The following seems buggy to me, but perhaps I'm confused about something. Or maybe there's a workaround that makes it moot? First, I ask Mathematica to find a distribution that describes a dataset ...
1 vote
82 views

1 vote
67 views

### How to generate random points with weight distribution and specific criteria? [duplicate]

Consider some function $f(E_{1},E_{2})$, say $$\tag 1 f(E_{1},E_{2}) = \exp[-E_{1}^{3}+E_{2}^{2}]$$ I want to generate random $n$ points $E_{1}$, $E_{2}$ using this function as weights, with an ...
76 views

### Law of propagation [closed]

If i have weight average of independent variables how i should calculate uncertainty. E.g Function F=( w1x1 + w2x2 )/w1+ w2 And followed errors For w1 error e1 For w2 error e2 For x1 error e3 For x2 ...
52 views

### How to do Linear Mixed Effect Model in Mathematica?

I have been trying to find out some packages and codes to realize the Linear Mixed Effect Model, but I failed. Does anyone know how to realize this?
133 views

### Texas hold 'em poker game Probability task

I wrote this code below ...
1 vote
43 views

### Paclet specialized for circular statistics?

I recently came across "answering biological questions using circular data and analysis in R". Is there a similar Mathematica Paclet for circular statistics analysis -- that includes ...
1 vote
54 views

### How to measure a LearnedDistribution?

I would like to measure the qualities of a LearnedDistribution in general and with regard to test sets. The docs say that it takes an option ValidationSet, but ...
75 views

### Failure in MultinormalDistribution

My RandomVariate fails to evaluate when sampling from a multinormal distribution, any idea what's happening here? This is Mathematica 12.1 on Mac: ...
153 views

### Remove Outliers in BoxWhiskerChart

Is it possible to automatically remove the outliers that are detected by "Outliers" within BoxWhiskerChart? Somehow <...
157 views

### Solve for p of Binomial distribution

Is there a way to solve for the probability p of a binomial distribution in a set of equations? With some arbitrary functions g[ _ ] and f[ _ ] such that: ...
133 views

### Histogram Plot Gaussian Distribution

I have to construct functions to obtain random numbers from a Gaussian Distribution with mean $\mu$ and variance $\sigma^2$ by using box-muller method and testing the function by sampling from a ...
16 views

### how to find the CDF of double truncated exponetial distribution [duplicate]

tring to find the cdf of double truncated exponetial distribution using the follwing code ...
42 views

### Converting between mean time between failures and survival probabilities

This is more of a math question, but I'm hoping some math wizard can help me map these concepts to functions in Mathematica's reliability API. $f$ of my machines will experience a failure in the first ...
91 views

### How to calculate a PDF of a neural network output?

I have to find the probability density function of the output of an internal layer in a neural network. I wanted to do it using NetMeasurements adding a layer like <...
116 views

### Modifying DistributionChart Bin Counts

I have a dataset (converted to a list of lists) that has 50 records, the first column of which represents the number individuals of a species taken in a trawl, the second column the minimum depth of ...
66 views

### PDF of double truncated exponential function [closed]

I am trying to find the pdf of a double truncated exponential distribution using the following code: ...
365 views

### How can I define a distribution and get the expectation in Mathematica?

How can I define a distribution and get the expectation in Mathematica for $a=a_H$ with probability $\lambda$ and $a=a_L$ with probability $1−\lambda$, where $\lambda\in(0,1)$?
66 views

1 vote