A Random Variable X Has a Probability Density Function F(x) $\frac { x } { 32 }$

Short Answer

A random variable X has a probability density function f(x) = $\frac { x } { 32 }$ , $0 \leq x \leq 8$ . Find a such that $\operatorname { Pr } ( X \geq a ) = \frac { 1 } { 4 }$ Enter your answer exactly in the reduced form b $\sqrt { c }$ , unlabeled.