Statistics and Probability · Foundations

Probability basics

The formal rules, sample spaces, events, axioms, that make "the chance of something" a well-defined number.

Also known as: sample space, events, axioms of probability.

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Leads to

• Combinatorics and counting: Counting how many ways something can happen, permutations and combinations, without listing them all.
• Conditional probability and independence: How knowing one event happened changes, or doesn't change, the probability of another.
• Discrete random variables: A number assigned to each outcome of a random experiment, when only countably many values are possible.

Related topics

• Combinatorics and counting: Counting how many ways something can happen, permutations and combinations, without listing them all.
• Conditional probability and independence: How knowing one event happened changes, or doesn't change, the probability of another.