Recent content by smckech

My apologies, on rereading they were quite poorly phrased questions and I was mixing up questions. If you don't mind I'll start afresh: 1. In a 3 ball lottery, where the ball is replaced after it is drawn, what is the probability of picking the correct number (the ordering does not matter...

There are three questions: 1. What is the probability of picking three distinct numbers (order does not matter)? (digits 0-9, ex: 123) 2. What is the probability of picking any three numbers in any order (order does not matter)? (digits 0-9, examples: 111,112,123) 3. What is the...

I would like some advise about what universities to apply to in the states for PhD programmes in physics. In particular what level of university (as defined by school rankings etc). I've been told that the high end universities can be overly stressful and that they foster a highly competitive...