Answer
$\displaystyle \frac{2,595,216}{2,598,960}$
Work Step by Step
Complement Rules of Probability$:$
$P($not $E)=1-P(E)$
$P(E)=1-P($not $E)$
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If P(E)=$\displaystyle \frac{3744}{2,598,960}$, then:
P( not E )= $1-\displaystyle \frac{3744}{2,598,960}=\frac{2,595,216}{2,598,960}$