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 of =z 0.22

(b)Find the area under the standard normal curve to the left of =z0.98

(c)Find the area under the standard normal curve to the left of =z0.74

d)Find the area under the standard normal curve to the left of =z0.52