R Rachelspeelman New Member Aug 6, 2007 #1 Aug 6, 2007 #1 You roll two fair dice, one red and one green. a) What is the probability of getting a number less than 5 on both? b) What is the probability of getting a sum of 9 on the two dice? c) What is the probability of getting a 5 on both?

You roll two fair dice, one red and one green. a) What is the probability of getting a number less than 5 on both? b) What is the probability of getting a sum of 9 on the two dice? c) What is the probability of getting a 5 on both?

A Akavall New Member Aug 6, 2007 #2 Aug 6, 2007 #2 a) 4/6 * 4/6 = 16/36 = 4/9 b)There are a total of 36 possible combination when rolling two dice. 9 = 6+3, 3+6; 5+4 4+5, four combinations 4/36=1/9 c) 1/6 * 1/6 = 1/36

a) 4/6 * 4/6 = 16/36 = 4/9 b)There are a total of 36 possible combination when rolling two dice. 9 = 6+3, 3+6; 5+4 4+5, four combinations 4/36=1/9 c) 1/6 * 1/6 = 1/36