contestada

A group consists of fivefive men and sevenseven women. FourFour people are selected to attend a conference.
a. In how many ways can fourfour people be selected from this group of twelvetwelve​?
b. In how many ways can fourfour women be selected from the sevenseven ​women?
c. Find the probability that the selected group will consist of all women.

Respuesta :

Answer:

Step-by-step explanation:

a.

4 people can be selected in ways=12 P4=12×11×10×9=11880

b.

4 women can be selected in  ways=7P4=7×6×5×4=840

c.

[tex]P=\frac{840}{11880} =\frac{7}{99}[/tex]