InterviewSolution
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InterviewSolution
| 1. |
Given that is the mean and σ 2 is the variance of n observations x 1 , x 2 … x n . Prove that the mean and variance of the observations ax 1 , ax 2 , ax 3 … ax n are and a 2 σ 2 , respectively ( a ≠ 0). |
| Answer» Given that is the mean and σ 2 is the variance of n observations x 1 , x 2 … x n . Prove that the mean and variance of the observations ax 1 , ax 2 , ax 3 … ax n are and a 2 σ 2 , respectively ( a ≠ 0). | |