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Math Help - Independent or dependent

  1. #1
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    Independent or dependent

    A coin is tossed 4 times A: getting all heads B: all tails. Are independent or dependent.

    These will be dependent because the next flip depends on the flip before.

    P(A and B) doesn't equal P(A)P(B)

    Would P(A and B)= 1/8?

    I am having trouble with the formula I do not know what to say for P( A and B)
    P(A)= 1/16
    P(B)= 1/16

    Thanks
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by IDontunderstand View Post
    A coin is tossed 4 times A: getting all heads B: all tails. Are independent or dependent.

    These will be dependent because the next flip depends on the flip before.

    P(A and B) doesn't equal P(A)P(B)

    Would P(A and B)= 1/8?

    I am having trouble with the formula I do not know what to say for P( A and B)
    P(A)= 1/16
    P(B)= 1/16

    Thanks
    Since A and B are mutually exclusive P(A and B)=0 (they cannot both simultaneously occur)

    CB
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