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Combined Mean of Multiple Groups
For $$k$$ groups:
$$\bar{x}=\frac{\sum_{i=1}^{k}n_i\bar{x}_i}{\sum_{i=1}^{k}n_i}$$
Usage
- Used when several groups are combined into one dataset.
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Combined Mean of Multiple Groups
For $$k$$ groups:
$$\bar{x}=\frac{\sum_{i=1}^{k}n_i\bar{x}_i}{\sum_{i=1}^{k}n_i}$$
Usage
- Used when several groups are combined into one dataset.
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