GATE XE (Engineering Sciences) 2007 - Question 20

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Section: Engineering Mathematics | Marks: 2

Choose a point uniformly distributed at random on the disc $x^2 + y^2 \le 1$. Let the random variable $X$ denote the distance of this point from the center of the disc. Then the variance of $X$ is

  • A. 1/16
  • B. 1/17
  • C. 1/18
  • D. 1/19

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