EMP Q.18

0. What is the probability of correctly choosing an unknown integer between 0 to 9 within three chances?

  • Option : B
  • Explanation : S = [0, 1, 2, ....,9)
    Suppose we want a particular integer "3" to be
    chosen.
    9
    Probability of not choosing "3" is 9/10 (in one
    chance)
    Probability of not choosing 3 in all the three
    chances

                         Probability

    Hence probability of choosing it in at least one
    of the three chances

                Probability

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