Posted by **sakiera** on Friday, November 2, 2012 at 11:45am.

Suppose there are 21 students in your class. If the teacher draws 2 names at random, what is the probability that you and your best friend will be chosen?

2/21

1/20

1/105

2/10

- math -
**PsyDAG **, Friday, November 2, 2012 at 2:30pm
A specific two names out of 21? What do you think?

- math -
**Somebody**, Friday, November 1, 2013 at 11:40am
Mine had different possible answers, mine was 1/210. I'm not sure how it got there but that's what it was. Sorry i prob didn't help much.

- math -
**InfamousGamer17**, Thursday, February 27, 2014 at 12:25pm
I ran into the exact same problem. PsyDAG was wrong because by taking out either you or your friend. That means there are less people, changing the possibility for the one left behind. The answer is 2/10 i think.

- math -
**yolo frolo**, Monday, January 25, 2016 at 1:27pm
its 1/210

- math -
**MATHGUY**, Tuesday, February 23, 2016 at 11:12am
Its 1 1/210 I just answered it on switched on schoolhouse, Hope this helps!!! (:

## Answer This Question

## Related Questions

- math - Jason, Erik, and Jamie are friends in art class. The teacher randomly ...
- statistics - In a class of 100 students, 30 are computer science majors, 49 are ...
- statistics - I have an ordianry deck of 52 cards, which has 26 red and 26 black ...
- Math - Forty-five percent of a large class of students in Statistics are females...
- math - There are 10 girls and 6 boys in a class. The teacher randomly draws one ...
- Math - Can someone guide me with this question? Four teachers and five students ...
- statistics - A sixth form class consists of 6 girls and 9 boys. Three students ...
- Math - Your teacher has a large box containing an equal number of red and blue ...
- statistics - suppose 45 students in an organization are male and 55 are female. ...
- 7th grade math (probability) - I'm not sure how to answer this: 3. THe 7th grade...

More Related Questions