Question 471435
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
{{{drawing(400,200,-5,5,-.5,1.5, graph(400,200,-5,5,-.5,1.5, 0,exp(-x^2/2)), blue(line( -1.80,0, -1.80,exp(-1.80^2/2))),locate(4.8,-.01,z),locate(4.8,.2,z))}}}
The area between z= 0 and z= -1.80 = .5 - P(z &#8804; -1.80) = .5 - .03593 = .46407