Using the normal table in the back of the book or software, find the value of z that makes the following probabilities true. You might find it helpful to draw a picture to check your answers.
(a) P (Z < z) = 0.20
(b) P (Z ≤ z) = 0.50
(c) P (-z ≤ Z ≤ z) = 0.50
(d) P (∣Z∣< z) = 0.01
(e) P (∣Z∣ > z) = 0.90