mathwizarddud
Jun27-08, 11:53 PM
How many ordered pairs (b,y) of positive integers with 4 \le b \le y \le 2007 are there such that when b blue balls and y yellow balls are randomnly arranged in a row, the probability that the balls on each end have the same colour is 1/2?
PS: Is there a button such that I could just click on it after I highlighted the text that I want to be included in the LaTeX tags? It's going to save me a lot of typing if there's such button (without keep typing [tex] and so on)!
PS: Is there a button such that I could just click on it after I highlighted the text that I want to be included in the LaTeX tags? It's going to save me a lot of typing if there's such button (without keep typing [tex] and so on)!