Probability
Definition
Probability refers to the likelihood of an event occurring. It quantifies uncertainty by assigning numerical values between 0 (impossible) and 1 (certain) to events or outcomes.
Analogy
Think of probability as predicting whether it will rain tomorrow. If the forecast says there's a 70% chance of rain, it means there's a higher likelihood of rain than not raining.
Related terms
Sample Space: The set of all possible outcomes in an experiment.
Event: A specific outcome or group of outcomes within the sample space.
Independent Events: Events that are not influenced by each other; the occurrence of one does not affect the probability of the other happening.
"Probability" appears in:
Subjects (2)
Practice Questions (4)
A researcher finds a 5% probability that their results are due to chance. The conclusion of these results would be...
In terms of statistics and probability, what is meant by "null hypothesis"?
What term describes our tendency to judge the probability of an event based on how readily examples come to mind?
Which cognitive bias can lead to overestimating the probability of similar events occurring in the future based on a memorable or vivid experience?
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