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7 July, 15:11

We will flip a balanced coin 3 times and for each toss, record whether we get a Head or a Tail. Write all possible outcomes of this experiment to find the probability that we get exactly 2 heads. Group of answer choices

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  1. 7 July, 18:23
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    probability to get exactly 2 heads when flipped a balanced coin 3 times is 3/8 = 0.375 (37.5%)

    Step-by-step explanation:

    Denoting H as head and T as tails, then in 3 flips there are 2³=8 possible outcomes.

    the possible outcomes in 3 flips are

    H, H, H

    H, H, T

    H, T, H

    H, T, T

    T, H, H

    T, H, T

    T, T, H

    T, T, T

    then there are 3 outcomes out of 8 where there are exactly 2 heads (2 heads with the tails in the 3 different places possible)

    then the probability to get exactly 2 heads when flipped a balanced coin 3 times is 3/8 = 0.375 (37.5%)
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