Mathematics · Statistics
Consider the following statistics for two sets of observations: Observation I: Size = 10, Mean = 2, Variance = 2 Observation II: Size = n, Mean = 3, Variance = 1 If the variance of the combined set of these two observations is 179, then the value of n is equal to:
- 13
- 25✓
- 37
- 49
Correct answer
5
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