Question 1027266
7a.{{{z=(x-mu)/sigma=(135-125)/7}}}
7b.Find {{{P(z)}}} for the z from 7a.
7c. Find {{{z[2]=(217-125)/7}}}. Find {{{P(z[2])}}}.
Calculate {{{P=P(z[2])-P(z[1])}}}
7d. Find {{{P(z[3])=1-0.11=0.89}}}
Then work backwards,
{{{x[3]-125=7*z[3]}}}
Solve for x[3].