Question 443692
 <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi

mean of 50 and a standard deviation of 30.
*Note: {{{z = blue(x - mu)/blue(sigma)}}}  | z = 2.5
   2.5 = (x-50)/30 
   x = 2.5*30 + 50
   x = 125
{{{drawing(400,200,-5,5,-.5,1.5, graph(400,200,-5,5,-.5,1.5, exp(-x^2/2)), green(line( 2.5,0, 2.5,exp(-2.5^2/2))),locate(4.8,-.01,z),locate(4.8,.2,z))}}}