For each probability expression, find the unknown z-value(s). Unless directed otherwise, use three decimals in your answers. (a) P(Z g zo) = 0.83. Find 20. 20: I Iii (b) P(Z S 20) = 0.2. Find Zn. 20: (c) P(Z 2 zo) = 0.3. Find 20. 20: I Iii (c) P(Zu g z 5 0.91) = 0.6785. Find Zu. 20 = (use two decimals) I Iii Not sure how to perform some of the tasks? Click to see similar problem Preview My Answers Submit Answers