Can you help me understand how I can estimate the variance of a variable?
Can you help me understand how I can estimate the variance of a variable?
user
I have a variable that is the sum of 3 other variables. I want to estimate the variance of the variable.

I know that the variance of the sum of 2 variables is the sum of the variances of the 2 variables.

But I don't know how to estimate the variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables
assistant
Can you help me understand how I can estimate the variance of a variable?
user
I have a variable that is the sum of two other variables. I want to estimate the variance of the variable.

I have the following:

```
x1 = 10
x2 = 20
x3 = x1 + x2
```

I want to estimate the variance of x3.

I know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3 is the sum of the variances of x1 and x2.

I also know that the variance of x3
assistant
Can you help me understand how I can estimate the variance of a variable?
user
I have a variable that is the sum of 3 other variables. I want to estimate the variance of the variable.

I know that the variance of the sum of 2 variables is the sum of the variances of the 2 variables.

But I don't know how to estimate the variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables is the sample variance of the 2 variables.

But I don't know how to estimate the sample variance of the sum of 3 variables.

I have the sample mean and sample variance of the 3 variables.

I know that the sample variance of the sum of 2 variables
assistant