How to calculate a mean if their is two variables in it?

To calculate the mean of two variables, you need to follow these steps:

1. Add up the values of both variables separately.
2. Divide the sum of each variable by the number of observations for that variable.
3. Add the two results obtained in step 2 together.
4. Divide the sum obtained in step 3 by 2 (since there are two variables).

Here is the formula for calculating the mean of two variables (X and Y) with n observations:

Mean = (ΣX / n + ΣY / n) / 2

Where:
- ΣX represents the sum of all values of variable X.
- ΣY represents the sum of all values of variable Y.
- n represents the number of observations for each variable.

Note: Make sure that the number of observations for both variables is the same. If they are different, you may need to adjust the formula accordingly.