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Math Help - Probability help!!!

  1. #1
    Newbie
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    Derry
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    Question Probability help!!!

    A = Paul is late for school
    B = Alan is late for school

    P(A)=0.24
    P(AB)=0.16
    P(A+B)= 0.68 <<<< This is mean't to have a line over it to make it NOT


    a)
    Display this information on a Venn diagram. (1)
    b)
    On a randomly selected day, calculate the probability that
    i. At least one of Paul or Alan is late for school. (2)
    ii. Alan is late for school. (2)
    c)
    Calculate the probability that Alan is late for school given that Paul is late.


    CAN SOMEONE HELP PLEASE???
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  2. #2
    MHF Contributor
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    Re: Probability help!!!

    Hey lyncher123.

    Hint: Draw a Venn diagram with two circles that overlap corresponding to A and B. The common part is A and B and the area outside both circles is NOT(A OR B).
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  3. #3
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    Derry
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    Re: Probability help!!!

    Whats the values for A and B? And Not Aor B?
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  4. #4
    MHF Contributor
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    Re: Probability help!!!

    P(A and B) = P(AB) = 0.16 from your post.
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