Having problem with two questions in a test.
Suppose that Z is a standard normal random variable. Find P(Z < 1.2). Round to two decimals, for example 0.34
I have tried 0,89 and 1-0.89=0,1152 = 0,12.
Z is a standard normal random variable. Find z such that P(-z < Z < z) = 0.5. Round to two decimals
I have tried 0.00 och 0.69 without sucess