Posted by Carline on Thursday, March 19, 2009 at 11:18am.
Three horses, A, B and C are in a race. A and B have the same probability of winning, and each is twice as likely to win as C. Find the probability of B or C winning.

statistics  PsyDAG, Thursday, March 19, 2009 at 11:31am
A = 2C
B = 2C
A + B + C = 1
2C + 2C + C = 1
You should be able to take it from here. I hope this helps. Thanks for asking.