Question 443752
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Hi
data: 13, 10, 11, 8, 14, 13, 13, 14, 30 
Meam = 14
SD = 6.3246
 30 is 2.5298 SD from mean of 14   | (30-14)/6.3246
 All fall within that area between the green lines below
{{{drawing(400,200,-5,5,-.5,1.5, graph(400,200,-5,5,-.5,1.5, exp(-x^2/2)), green(line(-2.5298,0,-2.5298,exp(-2.5298^2/2)),line(2.5298,0,2.5298,exp(-2.5298^2/2))),locate(4.8,-.01,z),locate(4.8,.2,z))}}}

34 and a standard deviation of 4: x = 26 then z = -8/4 = -2  {{{z =blue (x - mu)/blue(sigma)}}}