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Removing One Observation
If an observation $$a$$ is removed from $$n$$ observations having mean $$\bar{x}$$:
$$\bar{x}_{new}=\frac{n\bar{x}-a}{n-1}$$
Usage
- Used when one data value is deleted.
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Removing One Observation
If an observation $$a$$ is removed from $$n$$ observations having mean $$\bar{x}$$:
$$\bar{x}_{new}=\frac{n\bar{x}-a}{n-1}$$
Usage
- Used when one data value is deleted.
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