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Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that of two items sold during a given hour by this company both will be returned for a refund

  • statistics - ,

    experiment for n=400, p=0.06, where p is the probability of a success

  • statistics Tola - ,

    First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.

    Second, what is your question?

  • statistics tim - ,

    Assuming that the percentage applies to an hour,

    First item p=.05
    Second item p = .05

    The probability of all/both probabilities occurring is found by multiplying the individual probabilities.

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