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    SeanFM Zacken


    How do you interpret these from this venn diagram?

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    http://www.thestudentroom.co.uk/atta...5&d=1465764079
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    (Original post by govandpolitics)
    SeanFM Zacken


    How do you interpret these from this venn diagram?

    Name:  CodeCogsEqn.gif
Views: 103
Size:  3.3 KB



    http://www.thestudentroom.co.uk/atta...5&d=1465764079
    P(only A occurring) = 0.4

    P(A and B occurring) = 0.3

    P(only B occurring) = 0.2

    P(neither A nor B nor both A and B (basically absolutely nothing happening)) = 0.1
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    (Original post by govandpolitics)
    SeanFM Zacken
    Whoops, sorry, just noticed the link.

    P(A' and B') is the probability that neither A nor B happen, so that's the bit outside the venn diagram.

    P(A' and B) is the probability that A doesn't happen, but B does happen. So that's the same as saying only B happens. You can take it from there.

    P(A or B') is the probability that A happens (that could include A and B happening as well) or B doesn't happen. So you add these two together.
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    (Original post by Zacken)
    Whoops, sorry, just noticed the link.

    P(A' and B' is the probability that neither A nor B happen, so that's the bit outside the venn diagram.

    P(A' and B) is the probability that A doesn't happen, but B does happen. So that's the same as saying only B happens. You can take it from there.

    P(A or B' is the probability that A happens (that could include A and B happening as well) or B doesn't happen. So you add these two together.
    thanks
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    (Original post by Zacken)
    Whoops, sorry, just noticed the link.

    P(A' and B' is the probability that neither A nor B happen, so that's the bit outside the venn diagram.

    P(A' and B) is the probability that A doesn't happen, but B does happen. So that's the same as saying only B happens. You can take it from there.

    P(A or B' is the probability that A happens (that could include A and B happening as well) or B doesn't happen. So you add these two together.
    Hey, if you're free you think you can maybe help me with some AQA c4 questions? The AQA c4 thread is pretty inactive
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    (Original post by fpmaniac)
    Hey, if you're free you think you can maybe help me with some AQA c4 questions? The AQA c4 thread is pretty inactive
    Post a question in the maths forum, make a thread.
 
 
 
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