Let X be a continuous random variable whose probability density function is: x ≥ 1 0, x < 1 Then compute the following probability (Type your answers in decimals) f(x) = 21

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Where a > 0 and b > 0, the graph of the circle x2 + y2 = b2 contains point X in Quadrant II with x-coordinate −a. It also contains a second point Y in Quadrant IV where x = a. Find an expression for the length of XY in terms of a and b. XY=