Is it asking P(X>=3/4) / P(X>=1/2)?
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Originally Posted by ninano1205 Is it asking P(X>=3/4) / P(X>=1/2)? Yes. $\displaystyle \Pr\left(X \geq \frac{3}{4} \left| X \geq \frac{1}{2} \right. \right) = \frac{\Pr\left(X \geq \frac{3}{4}\right)}{ \left(X \geq \frac{1}{2}\right)}$.
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