Determine the area under the standard normal curve that lies to the left of the following z score. Use a table if necessary. Round your answer to four decimal places.

z = 1.57

We are asked to d etermine the area under the standard normal curve that lies to the left of the following z score of 1.57. in this case, we can use the rules of integration as this is related to area under the curve:

1/2+1/π * integral of (e - z^2 d z0 from 0 to x/2 where z=1.5

Answer is 0.8665