In these problems, find the indicated areas. For each problem, draw a standard normal curve and shade the area that is to be found.

Determine the area under the standard normal curve that lies between:

(a) z = -2.55 and z = 2.55

(b) z = -3.03 and z = 1.98

(c) Determine the total area under the standard normal curve:

to the left of z = -2.94 or to the right of z = 2.94