What is Probability of Compound Events?
1 Answer
Feb 2, 2015
It matters whether the events are independent or not.
Example
If you roll a die twice, the second roll is independent of the first, because a die doesn't have memory.
Probabilty of rolling two sixes
First:
Second:
Probability of two sixes means:
First is 6 AND second is 6:
Probability of rolling more than 4 (i.e. 5 OR 6) in one try:
General rule
If it's an AND situation multiply the chances
If it's an EITHER.. OR situation, you add