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Posted by on Tuesday, October 5, 2010 at 12:26am.

A bag contains 100 bolts and 300 nuts 50% of each have been rusted 1 item is chosen at random.
Find the probability that chosen item z rusted or a bolt.

  • math - , Tuesday, October 5, 2010 at 10:56am

    200/400 = probability of finding rusted object.

    100/400 = probability of choosing a bolt

    Either-or probability found by adding individual probabilities.

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