# Questions tagged [bivariate]

Concerning two random variables

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### Is it possible to winsorize bivariate outliers?

After examining the scatterplot of my dependent variable against my independent variable, it appears that there are some bivariate outliers. I also looked at the scatterplot of residuals against ...
47 views

### Why do my residual plot and scatterplot look the same and what does this mean?

I am investigating the relationship between device usage and screen time for my math assignment (my last ever high school math assignment, yay!), but after creating the residual plot, I realised it ...
1 vote
34 views

### How to generate random samples for the Poisson Bivariate Distribution like np.random.poisson in Numpy? [duplicate]

I am working with the Poisson Bivariate Distribution and I need to generate random samples to apply in a Monte Carlo simulation, but so far I haven't found too much about it on the internet. I saw ...
28 views

### What value bounds an ellipse of a bivariate population at one standard deviation?

I am trying to draw an ellipse that bounds a bivariate distribution by the shared 1 sigma in 2D space (i.e. points that fall within one standard deviation of both populations). The function in R I am ...
1 vote
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### Finding expectation through conditioning

I want to find $E(X^2Y^2)$. Now $Var(XY) = E(X^2Y^2)-E(XY)^2.$ Since $E(X)$ and $E(Y)$ both are 0, $Cov(X,Y) = E(XY)$ and $Cov(X,Y) = \rho \sigma_{x}\sigma_{y}.$ Therefore, $Cov(X,Y)=\rho.$ Therefore ...
44 views

### Data association

I have a typical question if someone can help. Construct two bivariate data sets (choose number of cases to suit yourself), each with correlation above 0.9, so that the combined data set has negative ...
1 vote
33 views

### What is the meaning of percentage in parantheses and the p-value in this bivariate analysis of patients?

In this paper, Table 2 shows some values in parentheses. The paper doesn't seem to include an explanation. As an example, 82 patients out of 94 with Radial head fracture showed No HO (Heterogeneous ...
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