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  1.  Two unbiased coin are tossed .What is the probability of getting at most one head?

    2. A.

    1/4
    B.

    2
    C.

    3/4
    D.

    1

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    Answer : Option C

    Explanation :

    Sample space (All [possible outcomes)S=(HH,HT,TH,TT)
    Event(required outcomes)=(TT,HT,TH)
    P(E)=n(E)/n(S)=3/4

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