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Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

  • Math Help - ,

    137

  • Math Help - ,

    349

  • Math Help - ,

    How

  • Math Help - ,

    both r incorrect

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    51

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