Probability
posted by Hannah on .
1. When two fair dice are tossed, what is the probability of a sum of 4 or a sum of 8?
2. When two fair dice are tossed, what is the probability of doubles or a sum over 9?
3. Evaluate 1025! / 1022!
Please help

1. You cant get 14 with two regular sixsided dice. The highest you can get with one throw is 12 so the probability would be 0
sorry i only can figure out #1 right now, if i figure all of it out then i will let you know. 
Sorry i messed up, what i meant was:
1. 8/36
2. Use the similar process
3. 1023*1024*1025= 1073740800 1.0737408 x 10*9