Question 1068416
{{{P(X)=C(13,X)*(0.38)^X*(1-0.38)^(13-X)}}}
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Using EXCEL to make a table of values,
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*[illustration g20.JPG].
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Sum the probabilities from X=3 to X=8,
{{{P(3<=X<=8)=0.874}}}
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Sum the probabilities from X=0 to X=4,
{{{P(X<=4)=0.501}}}