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      Questions tagged [probability]

      Consider if your question would be better at stats.stackexchange.com. Probability touches upon uncertainty, random phenomena, random numbers, random variables, probability distributions, sampling, combinatorics.

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      15 views

      Calibrating probabilities of neural network

      I would like to calibrate the probabilites of my CNN classification model. I have a custom cross-validation and in each cross-validation run I'm dowing the following: from sklearn.calibration import ...
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      57 views

      R: How would I repeatedly simulate how many attempts before a success on a 1/10 chance? (and record how many attempts it took?)

      R and probability noob here. I'm looking to create a histogram that shows the distribution of how many attempts it took to return a heads, repeated over 1000+ simulated runs on the equivalent of an ...
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      21 views

      Transition probability matrix of a Markov chain with 2D state variables in python

      I'm working on a time-series problem and I want to estimate the transition probability matrix of a 2D time-series data (n_samples=997, state height= 5, state width= 3) and there are only 5 possible ...
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      11 views

      Probibility of sum of two random variables [closed]

      If X and Y are two uniformly distributed random variables in (0, 10) and (0, 20) respectively, then P(X + Y > 20) is
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      28 views

      How do I use probability as a factor of selecting an item from a list using choice()? [duplicate]

      I want to select an item from the list using their probability as a determining factor. Below is as far as I have gotten. import random Nothing = {'Chance': 0.5} Valuable = {'Chance': 0.1} Junk = {'...
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      44 views

      Probability of a point taken from a certain normal distribution will be less than or equal to than a point taken from another?

      Suppose we have two independent normal distributions How do I calculate the probability of a certain point taken from distribution X1 being less than or equal to a certain point taken from ...
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      47 views
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      Multiple ngrams in transition matrix, probability not adding to 1

      I'm trying to find a way to make a transition matrix using unigrams, bigrams, and trigrams for a given text using python and numpy. Each row's probabilities should equal to one. I did this first with ...
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      14 views

      continues density plot seaborn with lower limit

      I have been using this code for my continues parameters to plot the probability distributions. However, my parameter now is price that cant be below zero, I have been reading to see if I can customize ...
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      47 views

      How to solve an R problem with both exponential and poisson distribution?

      I have come across questions in R which deal with exponential and poisson distributions separately, but I am unsure about how to go about it when you need to use both in the same question The number ...
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      10 views

      Can I calculate absolute probabilities from probability ratio output?

      I'm using the MIAmaxent package to run a maxent analysis for a species distribution model. I have presence-only data for one species, with three habitat variables (raster format). I can provide sample ...
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      21 views

      What's the probability of drawing four different suits when picking five cards?

      Considering an infinite and perfectly random deck of cards (or just repositioning the cards and shuffling a normal deck after every drawn card), how do I calculate the probability that exactly x suits ...
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      20 views

      Predict the total goasl of a football game after half time

      I am doing a sports analytics project, and I want to predict the total goal of a football game after a given time (e.g. half time). I was thinking about collecting data with the same half-time results,...
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      12 views

      I am trying to solve this question, maybe someone help me find the solution for B and C? [closed]

      enter image description here statistics and probability question I need the solution for the B and C!
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      27 views

      standard deviation in openoffice / libreoffice, but with probabilities associated

      I would like to calculate the standard deviation of a set of datas with probabilities associated to values. I use openoffice, but a solution in libreoffice would be OK to me too. Exemple : Values : 1 -...
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      22 views

      How to Estimate Teta from a sample using Newton Rapson - Distribution Cauchi in R [closed]

      I have a data that seen like this - > dput(asnum) c(7.16523478153752, 5.66659652818595, 4.47575534893755, 4.84970857977856, 15.2276296414708, -0.573093658844655, 4.97980673868322, 2.73969325233614,...

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