Given a standard normal distribution, find the area under the curve which lies

(a) To the left of a = 1.43;

(b) To the right of z = -0.89:

(c) Between z = —2.16 and z = — 0.65;

(d) To the left of; = -1.39;

(e) To the: right of z = 1.90:

(f) Between z = -0.48 and z = 1.74.