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How many groups of seven can be formed

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Reference no: EM131027899

A computer programming team has 12 members.

(a) How many ways can a group of 7 (out of the 12 members) be chosen to work on a special project? Explain.

(b) Suppose that out of the 12 members on the team 7 are IT majors and 5 are math majors.

(i) How many groups of 7 people can be formed that contain 4 IT majors and 3 math majors? Explain.

(ii) How many groups of seven can be formed that contain a least 1 IT major? Explain.

(c) Suppose that two team members (of the 12 of either major) refuse to work together. How many groups of seven can be chosen to work on a project? Explain.

(d) Suppose that two team members insist on either working together or not at all on projects. (That is, either the two people both work on the project together or neither will work on the project.) How many groups of seven can be chosen to work on a project? Explain.

Reference no: EM131027899

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