QN01. If Y = aX ± b, where a and b are any two constants and a ∦ 0, then the quartile deviation of Y values is equal to: a Q.D(X) + b ∣a∣ Q.D(X) Q.D(X) - b ∣b∣ Q.D(X) Answer(B)∣a∣ Q.D(X) QN02. For a symmetrical distribution: β1 > 0 β1 < 0 β1 =…
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