Using the TI-84 calculator, find the area under the standard normal curve. Round the answers to four decimal places. (a) Find the area under the standard normal curve to the left of z = -2.16. (b) Find the area under the standard normal curve to the right of z = - 2.28. (c) Find the area under the standard normal curve that lies between z = -2.3 and z = 1.08. (d) Find the area under the standard normal curve that lies outside the interval between z = -2.45 and z = -0.34