Question
Let be n observations, and let x be their arithmetic mean and be the variance
Statement 1 : Variance of .
Statement 2: Arithmetic mean is 4x.
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Question 1
The mean of 5 observations is 4.4 and their variance is 8.24. If three of the observations are 1, 2 and 6, find the other two observations.Question Text | Let be n observations, and let x be their arithmetic mean and be the variance Statement 1 : Variance of . Statement 2: Arithmetic mean is 4x. |