When we have a situation where we are considering several events, it is beneficial to have a way of representing it visually. Tree diagrams are visual representations of the outcomes of events. Robin ...

The probability in weather forecasts leaves many people perplexed on if, or when, they should continue with plans, cancel or delay. As summer ramps up across North America, millions of travelers, ...

Sometimes we want to know the probability of getting one result or another. The OR rule can help us here if the two results are mutually exclusive. Mutually exclusive means that the two outcomes of ...