The Standard Normal Distribution (2)• The graph of the standard normal distribution is shown below. • The area under the standard normal curve is found by integrating the function between two values of the curve.45 μ=0z0 z0 zThe Standard Normal Distribution (3)• Although a closed-form solution for the integral does not exist, we can use numerical methods of calculate to approximate the desired areas beneath the curve to a desired accuracy.• Table D in the Appendix of the textbook : Standard Normal Curve Areas P(z≦z0).