Mathematics · Statistics - Averages

Group 1 has n1 = 40 observations with mean x̄1 = 30. Group 2 has n2 = 60 observations with mean x̄2 = 50. What is the combined mean?

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Group 1 has n1 = 40 observations with mean x̄1 = 30. Group 2 has n2 = 60 observations with mean x̄2 = 50. What is the combined mean?

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Group 1 has n1 = 40 observations with mean x̄1 = 30. Group 2 has n2 = 60 observations with mean x̄2 = 50. What is the combined mean?

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