Determine and sketch the area under the standard normal curve that lies

a. To the left of −3.02. 

b. To the right of 0.61.

c. Between 1.11 and 2.75. 

d. between −2.06 and 5.02.

e. Between −4.11 and −1.5.

f. Either to the left of 1 or to the right of 3.