Question 463178
p=.17, q=1-.17=.83, n=200
{{{mu=np=200*.17=34}}}
{{{sigma=sqrt(npq)=sqrt(200*.17*.83)=5.31}}}
{{{z=(x-mu)/sigma=((24.5-34)/5.31)=-1.79}}}
{{{z=(x-mu)/sigma=((40.5-34)/5.31)=1.22}}}
Area between z=-1.79 and z=1.22 under the normal curve is 0.852
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Ed