10. When describing an event, we must pay attention to the two keywords: “and” and “or”. In the first case, we use multiplication for different choices; while in the second case, we use addition for different choices. True False

Question

10.	When describing an event, we must pay attention to the two keywords: “and” and “or”. In the first case, we use multiplication for different choices; while in the second case, we use addition for different choices.							True		False

texaschic101 · Answer

I believe it is true. This is about probabilities, right ?

texaschic101 · Answer

Rules of probability : Multiplication rule and additive rule Read this... http://www.wyzant.com/help/math/statistics_and_probability/probability/further_concepts_in_probability