Posted by **matt** on Tuesday, December 12, 2006 at 7:00pm.

Kevin has 11 CDs in his glove compartment. Six are rock and 5 are rap. He selects 3 cds at random.

What is the probability that he picks at least 2 rap cds?

Pr (two)=5/11 * 4/10 * 6/9

Pr (three ) =5/11 * 4/10 * 3/9

add those.

Not quite bobpursley.

There are 3 ways to pick 2 rap cds: (rap,rap,rock),(rap,rock,rap), and (rock,rap,rap). So,

Pr(two)=3*(5/11 * 4/10 * 6/9)

Pr(three) = same as before

add these.

- probability -
**Anonymous**, Sunday, April 7, 2013 at 1:09am
14/33

## Answer this Question

## Related Questions

- Math - Tell whose CD collection has the greater ratio of rock CDs to total CDs. ...
- elementary - nuber sense minnie has 6 county cds and 5 rock cds.amanda has 5 ...
- math - Kadegah was arranging cds. She had five different groups.she put 1/8 in ...
- math - Minnie has 6 country cds and 5 rock cds amanda has 5 rock cds and 6 ...
- Math - Minnie has 6 country CDs and 5 rock CDs. Amanda has 5 rock CDs and 6 ...
- Math - Find the number of each kind of object in the collection Miranda has 24 ...
- Finite - the student wants to buy 3 CDs, but assume that there are 3 CDs ...
- College Finite - A student wants to buy 3 CDs, but assume that there are 3 CDs ...
- Statistics and Probability - A computer supply house receives a large shipment ...
- Finite: College Math - A student wants to buy 3 CDs, but assume that there are 6...