Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
In a room filled with 7 people, 4 people have exactly 1 [#permalink]
17 Jul 2006, 17:47
This topic is locked. If you want to discuss this question please re-post it in the respective forum.
In a room filled with 7 people, 4 people have exactly 1 friend in the room and 3 people have exactly 2 friends in the room. If two individuals are selected from the room at random, what is the probability that those two individuals are NOT friends?
Can someone please show me a quick way to approach this question. I figured it out but it's taken me way too long..