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Removing One Observation: Sum of Squares
If $$a$$ is removed:
$$\sum x_i^2{}_{new}=\sum x_i^2-a^2$$
Usage
- Used when variance or standard deviation must be recalculated after removing an observation.
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Removing One Observation: Sum of Squares
If $$a$$ is removed:
$$\sum x_i^2{}_{new}=\sum x_i^2-a^2$$
Usage
- Used when variance or standard deviation must be recalculated after removing an observation.
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