Answer
$P(E~|~F)=0.2333$
Work Step by Step
$P(E~and~F)=0.105$
Using the Conditional Probability Rule (page 288):
$P(E~|~F)=\frac{P(E~and~F)}{P(F)}=\frac{0.105}{0.45}=0.2333$
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