Homework Help: Stats

Posted by Tatjana on Tuesday, October 26, 2010 at 8:05pm.

Suppose that 8% of a certain batch of calculators have a defective case, and that 11% have defective batteries. Also, 3% have both a defective case and defective batteries. A calculator is selected from the batch at random. Find the probability that the calculator has a good case and good batteries.

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