Determine the area under the standard normal curve that lies to the left of

(a) Z=1.61

(b) Z=0.87

(c) Z=0.45

(d) Z=0.56

(a) The area to the left of Z=1.61 is

(Round to four decimal places as needed.)

(b) The area to the left of Z=0.87 is

(Round to four decimal places as needed.)

(c) The area to the left of Z=0.45 is

(Round to four decimal places as needed.)

(d) The area to the left of Z=0.56 is

(Round to four decimal places as needed.)