All Questions
Tagged with statistics probability
618
questions
0
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10
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How to prove expected residual time formula
Can anyone help me to show that for a general random variable X with a fixed distribution to model the time interval between the independent events. The expected residual time, which is the time one ...
- 11
-1
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0
answers
28
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What distribution should I use? [closed]
I'm new to statistics and need to create a probability distribution with the following study:
*Note: Due to proprietary reasons the example given below is the best representation of the real data.
...
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14
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I try to understand F ditribution and relations to chi square and variances
Hello to everyone out there, I am trying to understand why F distribution and how it's related to chi-square. Why there are two formulas (with chi-square values devided by their corresponsing degrees ...
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18
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How to calculate the confidence intervals for a time-lagged cross correlation?
I am trying how to calculate the confidence intervals for a time-lagged cross-correlation graph. It's a bit complicated for me to understand probability concepts. I have investigated the formulas to ...
- 155
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10
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How to evaluate whether the results of multiple games conform to the probability distribution of their respective states [migrated]
There are n games, and each game has a state after the start.
Based on this state, the probability of the outcome of the game can be calculated.
For example, there are 3 type of results, and the ...
- 11
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12
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Bayesian Analysis: "Probability as Prediction" vs. "Likelihood as Explanation"?
In Bayesian Analysis, to what degree(s) does:
"Probability" mean prediction(s) of a future event(s), and
"Likelihood" means an assessment of the cause(s) of a
past event(s)?
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- 1,369
-1
votes
1
answer
23
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What is the scatter plot of the numbers that i will provide
X. Y
780 90
350 87
920 95
1000 96
450 88
300 85
640 91
520 89
890 94
720 93
200 86
980 97
600 90
430 86
760 92
910 94
370 87
550 89
850 95
250 85
A scatter plot picture please help me with this ...
1
vote
1
answer
65
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How to correctly do a Multivariate t-Distribution in R
I am working on a statistical analysis in R where I need to do a multivariate t-distribution. Each component of my parameter vector 𝛽
β should follow a univariate t-distribution derived from a ...
- 11
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0
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11
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dmultinom yields a probability of zero
I am working with dmultinom function from the Stats package in R. I am trying to calculate the probability of observing these values:
observed_values <- c(23, 14, 81, 0, 0, 0, 154, 0, 0, 54, 0, 0, ...
0
votes
1
answer
65
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How do I calculate weighted average of dates?
The context for this question is that say I have 200 dollars locked up that will be paid back to me each month for a varying amount of money with the final payment taking pace on the 4th year. I'm NOT ...
2
votes
1
answer
69
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Calculate CDF of Weibull distribution in R
I want to calculate the probability that a Weibull random variable X is greater than 1000, where X ~ Weibull(lambda, g).
Using the CDF I calculate it as:
g = log(log(.7)/log(.5))/log(40/81)
lambda = -...
- 4,775
-1
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1
answer
119
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Coin throw probability on a chessboard square
I need some insights on the following problem. You are given a coin whose diameter is equivalent to half the length of a chessboard unit square. If you throw the coin on the board, what is the ...
0
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0
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23
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Coupon collector’s test (for testing sequences)
I'm reading Donald Knuth's The Art of Programming. I can't figure out how to apply chi-square. Here's the algorithm itself
enter image description here
enter image description here
Let's say I have a ...
- 1
0
votes
1
answer
100
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hmmlearn MultinomialHMM emissionprob_ size
I'm using the code below to fit an HMM model with two hidden states, a vocabulary of size 5 (so 5 possible symbols), and a list of sequences, each with 10 observations.
I don't understand why model....
- 10k
-1
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1
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65
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Visualize a vector of booleans as an image grid of symbols with different colors in python
For teaching purposes in statistics and probability, I want to give a visual representation of various probabilities by an image grid with objects or symbols in different colors in a Jupyter notebook.
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