Determine the area under the standard normal curve that lies to the left of (a) Z = 0.55, (b) Z = - 1.25, (c) Z= 1.64, and (d) Z= -0.76. (a) The area to the left of Z = 0.55 is (Round to four decimal places as needed.) (b) The area to the left of Z = - 1.25 is (Round to four decimal places as needed.) (c) The area to the left of Z = 1.64 is (Round to four decimal places as needed.) (d) The area to the left of Z = - 0.76 is (Round to four decimal places as needed.)