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Missing Observation from Variance
If $$n$$ observations have mean $$\bar{x}$$ and variance $$\sigma^2$$:
$$\sum x_i^2=n(\sigma^2+\bar{x}^2)$$
Usage
- Used to determine the required sum of squares when variance and mean are known.
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Missing Observation from Variance
If $$n$$ observations have mean $$\bar{x}$$ and variance $$\sigma^2$$:
$$\sum x_i^2=n(\sigma^2+\bar{x}^2)$$
Usage
- Used to determine the required sum of squares when variance and mean are known.
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