AA www-awu.aleks.com a C {}my|HACC|edu - Portal B McGraw-Hill ALEKS -... X A ALEKS - Tinika Dekey... P Poin O RANDOM VARIABLES AND DISTRIBUTIONS Standard normal probabilities 3/5 Suppose Z follows the standard normal distribution. Calculate the following probabilities using the ALEKS calculator. Round your responses to at least three decimal places. (a) P(Z> - 1.78) = X ? (b) P (Z s 1.68 ) = [ (C) P (-0.94