Find each of the shaded areas under the standard normal curve using a TI-84 Plus calculator. Round the answers to at least four decimal places. Part 1 of 4 (a) 0 1.25 The area of the shaded region is Part 2 of 4 (b) -1.71 0 The area of the shaded region is Part 3 of 4 () -0.12 0 1.72 The area of the shaded region is 1 Part: 3 / 4 Part 4 of 4 (d) The area of the shaded region is 0 0.23 1.76