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Variance After Adding a Constant
If every observation is increased by $$c$$:
$$y_i=x_i+c$$
then:
$$\sigma_y^2=\sigma_x^2$$
Usage
- Adding the same number to every observation does not change variance.
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Variance After Adding a Constant
If every observation is increased by $$c$$:
$$y_i=x_i+c$$
then:
$$\sigma_y^2=\sigma_x^2$$
Usage
- Adding the same number to every observation does not change variance.
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