File:Standard_deviation_diagram_micro.svg · Wikimedia Commons · See Wikimedia Commons
Giá trị kỳ vọng
Sign in to saveAlso known as mathematical expectation, first moment, expected value, expectation value
trung bình có trọng số là xác suất của tất cả các giá trị đầu ra cụ thể của một biến ngẫu nhiên
AI overview
An expectation is the long-run average value you'd get if you repeated a random experiment many times and calculated the mean of all the outcomes. It matters because it tells you what to expect "on average" from uncertain situations, making it useful for decision-making and predicting typical outcomes.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- arithmetic mean
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- facet of
- expectation
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- maintained by WikiProject
- WikiProject Mathematics
Sources (3)
via Wikidata · CC0