Using the standard normal table, determine a z value (to the nearest two decimal places) such that

Question:

Using the standard normal table, determine a z value (to the nearest two decimal places) such that the area
a. From the midpoint to z is 0.20.
b. From the midpoint to z is 0.48.
c. Between z and negative infinity is 0.54.
d. Between z and positive infinity is 0.30.