Given that x is the mean and sigma 2 is the variance of n observations x1 x2 hellip xn Pro...........

Given that x¯ is the mean and σ2 is the variance of n observations x1, x2, …,xn . Prove that the mean and variance of the observations ax1, ax2, ax3, …., axn are ax¯ and a2σ2, respectively, (a ≠ 0). (5 marks)

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