Saturday

January 31, 2015

January 31, 2015

Posted by **Anna** on Saturday, January 2, 2010 at 11:43pm.

- Probability -
**Reiny**, Saturday, January 2, 2010 at 11:52pmThe number of committees without restrictions is C(16,5) = 4368

The number of committees without any geography teachers is C(14,5) = 2002

So the number of ways with at least one geography teacher is 4368-2002 = 2366

or:

1 geography teacher : C(2,1)*C(14,4) = 2002

2 geography teachers : C(2,2)*C(14,3) = 364

sum = 2002+364 = 2366 (as above)

**Answer this Question**

**Related Questions**

Math - Find the probability of: a) Rolling a three OR a six with a single die ...

Math - Scummydale Senior High School has 8 math teachers and 4 history teachers...

algebra - Lincoln High School has 98 teachers. Of the 42 female teachers 8 teach...

Math - A school has four art teachers, three music teachers, and eight history ...

algebra 2 - Lincoln High School has 98 teachers. Of the 42 female teachers, 8 ...

college math - How many different committees can be formed from 9 teachers and ...

Maths - There were 40 members in a hockey club. 3/8 of them were girls. When ...

English - 1. He went to the teachers' room. There were many teachers, and he was...

math - All of the 5th grade teachers and students from Almond went on a field ...

math - At the faculty costume party, each teacher from Transylvania Middle ...