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  3. a in how many ways can 3 out of 11...

Question: a in how many ways can 3 out of 11...

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a. In how many ways can 3 out of 11 engineers be assigned to the project roles of team leader, test engineer, and quality engineer?

b. A carton of 18 rechargeable batteries contains three that are defective. In how many ways can an inspector choose 4 of the batteries and get exactly one defective battery?

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