There are 7 women and 5 men in a department. four people are needed for a committee.
a.in how many ways can a committee of 4 people be selected?
b.in how many ways can this committee be selected if there must be exactly 2 men and 2 women on the committee?
c.in how many ways can this committee be selected if there must be at least 2 women on the committee?

Respuesta :

A. 4 men , 4 women, 3 men, 1 women, 3 women , 1 men
B. Both groups of 2
C. then find 2 men

There are 7 women and 5 men in a department. four people are needed for a committee. A. 4 men, 4 women, 3 men, 1 woman, 3 women, 1 man

B. Both groups of 2 C. then find 2 men.

What is the combination?

Each of the different groups or selections can be formed by taking some or all of a number of objects, irrespective of their arrangments is called a combination.

There are 7 women and 5 men in a department. four people are needed for a committee.

A. 4 people can be selected in different ways that are 4 men, 4 women, 3 men, 1 woman, 3 women, 1 man

B. This committee can be selected if there must be exactly 2 men and 2 women on the committee which is both groups of 2.

C. This committee can be selected if there must be at least 2 women on the committee which is 2 men.

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