Mathematics · Statistics
Two datasets A and B have the same mean. Which of the following MUST be true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1If the two datasets are combined, then the mean of the combined dataset = mean of A.✓
- 2If the two datasets are combined, then the mean of the combined dataset = me an of A + mean of B.
- 3Mean of the squares of the observations in A = Mean of the squares of the observations in B.
- 4Sum of the observations in A = Sum of the observations in B.
Correct answer
If the two datasets are combined, then the mean of the combined dataset = mean of A.
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