Outcome
One possible result of a trial
Event
The occurrence of one or more desirable outcomes
Relative frequency
An estimate of the probability of an event
What is the formula for relative frequency?
No. of times an event happens in a trial ————————————————— Total no. of trials
Probability
The numerical measure of an event happening
What is the formula for probability?
No. of desirable outcomes———————————————Total no. of all possible outcomes
What is the formula for expected frequency?
No. of trials x relative frequency or probability
Trial
The act of doing an experiment in probability
Favourable outcome
The outcome we want