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Probability

Writer's picture: Zack ScanlonZack Scanlon

Probability is how likely something to happen, probability comes in many forms like odds, percentage and likelihood. As long as it is random between 0 and 1.


It was also helpful to learn that in an exam i should write my answers as both fractions and as a number between 0 and 1 e.g 0.5 and 1/2.


Probability of an event happening = Number of ways it could happen/ Total number of outcomes.


Probability terminology that i wasn't aware of include:

Experiment: a repeatable procedure with a set of possible results


Outcome: a repeatable procedure with a set of possible results.


Sample Space: A possible result of an experiment.


Sample Point: just one of the possible outcomes


Event: single or multiple outcomes of an experiment (e.g dice rolls higher than 3)


i was also unaware that if they word of the question has the word OR you add your probability together and if it had the word AND you multiply your probability.

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