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Thinking 7. A committee of four members is to be randomly formed from eight technicians, four engineers, and three mathematicians. What is the probability that

Thinking

7. A committee of four members is to be randomly formed from eight technicians, four engineers, and three mathematicians. What is the probability that the committee

a) will be comprised of all technicians?

b) will be comprised of two technicians, one engineer, and one mathematician?

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