Find the area under the normal curve that lies between the following pairs of z-values

Find the area under the normal curve that lies between the following pairs of z-values. (Give your answers correct to four decimal places.)

(a) z = 0 to z = 1.43

(b) z = 0 to z = 1.00

(c) z = 0 to z = −2.73

(d) z = 0 to z = −1.98