Question: A work crew for a building project is to be made up of two craftsmen and four laborers se- lected from a total of five

A work crew for a building project is to be made up of two craftsmen and four laborers se- lected from a total of five craftsmen and six laborers available.

(a) How many different combinations are possible?

(b) The brother of one of the craftsmen is a laborer. If the crew is selected at random, what is the probability that both brothers will be selected?

(c) What is the probability that neither brother will be selected?

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