Algorithms - GATE Previous Year Questions

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Multiple Choice

Suppose the letters a, b, c, d, e, f have probabilities $ \dfrac{1}{2},\dfrac{1}{4},\dfrac{1}{8},\dfrac{1}{16},\dfrac{1}{32},\dfrac{1}{32}$ respectively.

What is the average length of the correct answer to Q.?

  1. 3
  2. 2.1875
  3. 2.25
  4. 1.9375
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