IEE380Summer09Q3 - IEE 380 Summer 20091 Quiz#3 Name An...

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IEE 380 Summer 2009 1 Name: _____________________________ Quiz #3 An particular resistor has a probability of .2 of being “failed” by an inspector. An inspector either “passes” or “fails” an item. Four items are inspected. What is the probability that at least 2 of these items are “passed”? You can show your answer in term form, but show all relevant numerical values in each term. IEE 380 Summer 2009 2 Name: _____________________________ Quiz #3 St. Jude Medical makes a type of pacemaker. This pacemaker is inspected for cosmetic defects and is deemed either “acceptable” or “not acceptable” (the “not acceptable” pacemakers are returned to the line for re-work). The probability that a pacemaker is defective is .05. An inspector looks at 10 pacemakers. What is the probability that none of the pacemakers is “not acceptable”? You can leave your answer in term form but show all relevant numerical values. = - = 4 2 4 2 . 8 .
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