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    probability problem

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    Two events, A and B are equally likely. The chance that either A or B happens on a given trial of an experiment is 0.70, while the chance that they both happen on a given trial is only 0.40.

    What is the probability that event A happens?

    © BrainMass Inc. brainmass.com March 4, 2021, 5:47 pm ad1c9bdddf
    https://brainmass.com/statistics/probability/probability-problem-10761

    Solution Preview

    Hi
    <br>
    <br>I think the difficulty with this question is that it is hard to visualise so I have drawn a diagram (see attachment).
    <br>
    <br>We are given:
    <br>the chance of A = the chance of B
    <br>the ...

    Solution Summary

    Help with a probability problem is given with a visual to explain.

    $2.49

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