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There are 7 women and 5 men in a department.4 people are needed for a focus group how many ways can this group be formed if it must include at least 2 women

There are 7 women and 5 men in a department.4 people are needed for a focus group how many ways can this group be formed if it must include at least 2 women
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There are 7 women and 5 men in a department.4 people are needed for a focus group how many ways can this group be formed if it must include at least 2 women

asked
User Jont
by
8.4k points

1 Answer

5 votes
Answer
420

Step by step

Total - n(no woman) - n(1 woman)
= 12C4 - 7C0 * 5C4 - 7C1 * 5C3
= 495 - 1 * 5 - 7 * 10
= 420
answered
User Guillochon
by
8.6k points
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