Banking Sample Paper IBPS PO (Main) Sample Test Paper-2

  • question_answer
    If a coin is tossed repeatedly and the tail appears for the first 96 times then what is the probability that the head appears on 97th toss?

    A)  \[\frac{96}{97}\]

    B)  \[\frac{1}{2}\]

    C)  \[\frac{97}{96}\]

    D)  \[\frac{48}{97}\]

    E)  \[\frac{97}{48}\]

    Correct Answer: B

    Solution :

    In every toss, probability of having either tail or head is always \[\frac{1}{2}\]. No matter how many times we have tossed, each and every toss is different. So, for 97th toss the probability of having head is \[\frac{1}{2}\].


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