A city council consists of five Democrats and six Republicans. If a committee of six people is selected, find the probability of selecting four Democrats and twoRepublicans

Respuesta :

Given:

The number of democrats = 5.

The number of republicans = 6.

Aim:

We need to find the probability of selecting four Democrats and two Republicans.

Explantion:

The possible way to select four Democrats

[tex]=5C_4=5[/tex]

The possible way to select 2 republicans is

[tex]=6C_2=15[/tex]

The total way to select 6 people is

[tex]=11C_6=462[/tex]

The probability of selecting four Democrats and two Republicans is

[tex]=\frac{5C_4\cdot6C_2}{11C_6}[/tex]

[tex]=\frac{5\times15}{462}[/tex]

[tex]=\frac{75}{462}=\frac{25}{154}[/tex]

The probability of selecting four Democrats and two Republicans is 25/154.

Final answer:

The probability of selecting four Democrats and two Republicans is 25/154.