Question 412457
  <pre><font size = 3 color = "indigo"><b>
Hi
given a normal distribution with a mean of 6000 and standard diviation 1500
 what score is at the 30th percentile?
*Note: {{{z = blue(x - mu)/blue(sigma)}}}
      .8023 = (x -6000)/1500   |NORMSDIST(0.85) = .8023
     .8023*1500 + 6000 = x =  7203.43  or 7204
{{{drawing(300,300,-5,5,-1,1,blue(line(.8023,5,.8023,-5)), grid(1),graph( 300, 300,-5,5,-1,1,(1/sqrt(2*pi))*3^((-x^2/2)))) }}}