Question 1058714
{{{P(X)=C(10,X)*(0.68)^X*(1-0.68)^(10-X)}}}
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Use EXCEL to generate the P values,
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*[illustration NL8.JPG].
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Less than half would be less than 5 so sum the probabilities from X=0 to X=4.
{{{P=P(0)+P(1)+P(2)+P(3)+P(4)}}}
{{{P=0.06371}}}