Probability Method Sheet
One of the events must happen.
When rolling a dice a 1, 2, 3, 4, 5, or 6 will be the outcome.
Two events are independent when one has no influence over the occurrence of the other.
An example could be which card I choose at random from a pack of cards and whether it
is raining outside.
Mutually exclusive events
These are events which cannot happen at the same time. An example would be rolling a
single die once the two events of getting a six and getting a two at the same time is not
Probability that event B will occur given that event A has already occurred.
These are an easy way to work out probabilities. They consist of points for each event
and branches for each outcome.
Bridging to Level 5 Maths Probability Methods Sheet 1