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    probability of defective versus non defective balls

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    A batch of 100 Barbie dolls contains four (4) defective dolls. What is the probability that a sample of three (3) dolls from this batch will contain:
    a) No defective dolls.
    b) All defective dolls.
    c) At least one defective dolls.
    d) At least one non-defective doll.

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    https://brainmass.com/statistics/probability/probability-defective-non-defective-balls-464988

    Solution Preview

    Hi there,

    Solution:
    According to the statement, the probability of a doll being defective is 0.04.
    Then the probability of a doll being non-defective is ...

    Solution Summary

    The solution provides examples how to calculate the probability of defective versus non defective balls among the choices.

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