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Variance After Subtracting a Constant
If:
$$y_i=x_i-c$$
then:
$$\sigma_y^2=\sigma_x^2$$
Usage
- Subtracting the same number from every observation does not change variance.
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Variance After Subtracting a Constant
If:
$$y_i=x_i-c$$
then:
$$\sigma_y^2=\sigma_x^2$$
Usage
- Subtracting the same number from every observation does not change variance.
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