Tuesday

January 27, 2015

January 27, 2015

Posted by **meep** on Saturday, January 12, 2013 at 3:51pm.

- math -
**Reiny**, Saturday, January 12, 2013 at 4:44pmnumber of committes without restriction

= C(12,3) =220

number of committess with three boys

= C(5,3) = 10

prob( 3boys) = 10/220 = 1/22

number of committees with 2 boys, 1 girs

= C(5,2) x C(7,1)

= 70

prob (2boys, 1 girl ) = 70/220 = 7/22

**Answer this Question**

**Related Questions**

Math - Mr. Rad's class was invited to go on a field trip after school hours. ...

MATH - A STUDENT COUNCIL COMMITTEE IS MADE UP OF 4 BOYS AND 5 GIRLS.IF 2 ...

MATH - the class president plans to randomly select a committee of three people ...

Math - The ratio of adults to girls to boys on a class field trip was 1:4:5. If ...

math - On a class trip there wre 30 more girls than boys.The total number of ...

Math 117 - A class has 10 boys and 12 girls. In how many ways can a committee of...

Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...

layla - Mrs. Baker has to choose 2 students to lead the class field trip. If she...

algebra - Classes A and B have 35 students each. If seven girls shift from class...

algebra - Classes A and B have 35 students each. If seven girls shift from class...