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    Question

    If a coin is tossed 10 times then what is the

    probability of getting three heads?
    A 19/109 Correct Answer Incorrect Answer
    B 22/109 Correct Answer Incorrect Answer
    C 13/118 Correct Answer Incorrect Answer
    D 15/128 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total sample spaces = 2¹тБ░ Total favourable events N(P) = ¹тБ░CтВГ Probability (E) = (N(P))/(N(S)) = (¹тБ░CтВГ )/(2¹тБ░)= (¹тБ░CтВГ )/(2^5. 2тБ╡) = 120/(32 × 32) = 15/128

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