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QUESTION
12. For the standard normal distribution E(Z)==_______
12. For the standard normal distribution E(Z)=µ=_______
14. consider this data: 2 3 6 8Then for value of Ϭ, Z=________________Solution:X2368Mean =4.75Std. dev =###Z=(X - 4.75)/2.75 Z-1.00-0.640.451.18