Given thatisthe mean and σ2is the variance of n observations x1, x2� – InterviewSolution

1.	Given thatisthe mean and σ2is the variance of n observations x1, x2… xn. Prove that the mean andvariance of the observations ax1, ax2,ax3 …axn are and a2 σ2,respectively (a ≠ 0).
Answer» Given that is the mean and σ² is the variance of n observations x₁, x₂ … x_n. Prove that the mean and variance of the observations ax₁, ax₂, ax₃ …ax_nare and a² σ², respectively (a ≠ 0).

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