chance variable
Học thuậtThân thiện
Definition
Noun: A chance variable is a variable quantity whose value is subject to variations due to chance. It is a numerical outcome that depends on a random phenomenon.
Usage
A chance variable is a fundamental concept in probability and statistics, representing an uncertain numerical quantity. It is the formal term for what is more commonly called a random variable in modern usage. - In this experiment, the number of heads flipped is a chance variable. - The researcher defined the daily temperature as the chance variable in her climate model.
Advanced Usage
- Theoretical Context: In formal probability theory, a chance variable is a function that maps outcomes from a sample space to real numbers.
- The probability distribution describes all possible values of the chance variable and their likelihoods.
Variants and Related Words
- Random Variable (n): The modern and more frequently used synonym for chance variable.
- The expected value of a random variable is a key concept.
Synonyms
- Random Variable
- Stochastic Variable
- Variate
Related Phrases/Idioms
(This term is a technical noun and is not commonly used in idiomatic or phrasal verb constructions.)
Noun
- a variable quantity that is random