Question 440004
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Hi
*Note: {{{z = blue(x - mu)/blue(sigma)}}}
   z = (80.24-83)/6 = -.46    and z =(96.26-83)/6 = 2.21
 P(.46 < z < 2.21) = NORMSDIST(2.21)-NORMSDIST(-0.46) = .9864 - .3228 = .6637
{{{drawing(400,200,-5,5,-.5,1.5, graph(400,200,-5,5,-.5,1.5, exp(-x^2/2)), green(line(-.46,0,-.46,exp(-.46^2/2)),line(2.21,0,2.21,exp(-2.21^2/2))),locate(4.8,-.01,z),locate(4.8,.2,z))}}}