Find answers to your questions about Cross Validated or help others by answering their Cross Validated questions.
I recently played on a betting site (soccer games) and wondered how they change odds so quickly on sporting events. I get the basics of betting, but wonder how they...
Asked on 12/13/2020 by Svexo
1 answerI had used the already published Likert scale for the survey. And the responses to the survey from 98 participants were collected. The survey likert scale was from 1-5 from...
Asked on 12/12/2020 by Aakash Bashyal
1 answerI have a dataset with rows of compositional data representing character preferences (~150 characters), essentially the percentage of time played as a specific character. I would like to get correlations...
Asked on 12/12/2020 by Samme Galanakis
0 answerI'm trying to estimate a correlation matrix for a model where I already have a sense of the values of the off-diagonals based on existing studies. I'm quite new to...
Asked on 12/11/2020 by Sue Doh Nimh
1 answerEconometric textbooks often make the distinction between three types of independence:Stochastic independence: $mathrm{D}(u|x)=mathrm{D}(u)$Mean independence: $mathrm{E}(u|x)=mathrm{E}(u)$Linear independence: $mathrm{Cov}(u,x)=0$with the one preceding being stronger and implying the subsequent. For...
Asked on 12/11/2020 by luchonacho
0 answerIn the book "Common errors in statistics" https://www.amazon.com/Common-Errors-Statistics-Avoid-Them/dp/1118294394, I read the following statement Permutation tests only yield exact significance levels if the labels on the observations...
Asked on 12/11/2020 by rumtscho
1 answerSay I have a dataset of 1 million high school students. I'm trying to determine if test scores can be used to determine a successful college performance. While the dataset...
Asked on 12/11/2020 by kaecvtionr
1 answerIn Spirtes (1995) there is an example (Fig. 4 on page 495, reproduced below) of a directed cyclic graph with non-linear structural equations in which $d$-separation...
Asked on 12/10/2020 by quant_dev
1 answerAssume that $f ({bf x}; theta): mathbb{R}^p times Theta to mathbb{R}$, where ${bf x}$ is the vector of inputs (with some distribution) and $theta$ is the vector of parameters. ...
Asked on 12/10/2020
1 answerWould statisticians hang me for doing the following? I have a heterogeneous dataset of elderly subjects. Thus, I have model with 7 predictors, including 4 categorical ones, of which some...
Asked on 12/10/2020 by st4co4
1 answerGet help from others!
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