Question 1116858
{{{P(X)=C(10,X)*(0.65)^X*(1-0.65)^(10-X)}}}
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*[illustration bn1.JPG].
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Four or fewer means
{{{P(X<=4)=P(0)+P(1)+P(2)+P(3)+P(4)}}}
{{{P(X<=4)=0.09493}}}