Multiple Choice Questions on A fair coin is tossed 100 times What is the probability of getting tails an odd number of times ........ for NDA Exam Preparation

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Multiple Choice Questions

A fair coin is tossed 100 times What is the probability of getting tails an odd number of times ........

Mathematics (NDA) Probability
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    A fair coin is tossed 100 times. What is the probability of getting tails an odd number of times?

    1/2

    Correct Answer

    3/8

    Incorrect Answer

    1/4

    Incorrect Answer

    1/8

    Incorrect Answer
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    Explanation:

    Clearly, total number of outcomes = 2100 and number of favourable outcomes
    =100C1+100C3+100C5+............+100C99=2100-1=299

    Hence, required probability =299/2100=1/2

    By: Munesh Kumari
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