Wednesday

August 27, 2014

August 27, 2014

Posted by **marie s** on Tuesday, August 23, 2011 at 6:10pm.

A.in how many ways can four people be selected from this group of eleven?

B.In how many ways can four Republicans be selected from six Republicans?

C.find the probability that the selected group will consist of all Republicans?

- math -
**deja**, Tuesday, August 23, 2011 at 6:19pmthe answer is "C"

- math -
**marie s**, Tuesday, August 23, 2011 at 6:21pmThanks, but i need the answer to all three questions

- math -
**Reiny**, Tuesday, August 23, 2011 at 6:23pmA) choose 4 from 11 which is C(11,4) or 330

b) choose 4 from 6 which is C(6,4) or 15

c) assuming that your group still consists of 4 people

prob = 15/330 = 1/22

- math -
**marie s**, Tuesday, August 23, 2011 at 6:24pmthank you

- math -
**drwls**, Tuesday, August 23, 2011 at 6:25pmA. 11 x 10 x 9 x 8/(4 x 3 x 2 x 1) = 330

B. 6!/(4!*2!) = 15

C. (6/11)*(5/10)*(4/9)*(3/8) = 0.04545

- math -
**Anonymous**, Monday, May 5, 2014 at 5:44pmWhat is the cost of concrete for a walkway that is 15 feet long, 8 feet wide, and 9 inches deep if the concrete costs $30 per cubic yard?

**Related Questions**

Math - 1. How many ways can I select 10 people to attend a conference if 4 must ...

Math - Assume that the committee consists of 8 Republicans and 6 Democrats. A ...

math - Assume that the committee consists of 4 Republicans and 5 Democrats. A ...

Finite MAth - Assume that the committee consists of 5 Republicans and 7 ...

statistics - A committee consists of five men and four women. Two people are ...

statistics - 6. six men and four women are standing around a table that has four...

math - You are forming 3 teams from 25 people. Team A has 8 Team B has 3 Team C ...

math (statistics) - There are 15 qualified applicants for 5 trainee positions in...

math - A jar contains six red marbles, four green marbles and five yellow ones. ...

statistics - A company employs nine people and plans to select a group of six of...