Question 874801
Find the z score.
{{{z=(x-mu)/sigma}}}
{{{z[1]=(40000-36000)/10000}}}
{{{z[1]=0.4}}}
{{{P=1-P(z[1])}}}
{{{P=1-0.655422}}}
{{{P=0.344}}}
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{{{z[2]=(41000-36000)/10000=0.5}}}
{{{z[3]=(38500-36000)/10000=0.25}}}
{{{P=P(z[2])-P(z[3])}}}
{{{P=0.692-0.599}}}
{{{P=0.093}}}
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{{{z[4]=(30000-36000)/10000=-0.6}}}
{{{z[5]=(40000-36000)/10000=0.4}}}
{{{P=P(z[5])-P(z[4])}}}
{{{P=0.655-0.274}}}
{{{P=0.381}}}