Find the area under the standard normal curve to the left of the followingz -values. Round your answers to at least four decimal places.

Find the area under the standard normal curve to the left of the following Z-values. Round your answers to at least four decimal places. (a) Find the area under the standard normal curve to the left ofz= 1.58 . (b) Find the area under the standard normal curve to the left of Z = 2-21 . (c) Find the area under the standard normal curve to the left of Z = '0-52 . (d) Find the area under the standard normal curve to the left of 2: 0.85 . The area to the left on= 1.58 is [:l