Expected Value
Easymathematics
The expected value E(X) of a random variable X is also called
Select the correct option:
Solution
Incorrect! Answer:
Mean
- Mathematical Def: E(X)=∑xiP(X=xi).
- Concept: It represents the long-run average value of repetitions of the same experiment.
- Terminology: In the context of probability, 'Expected Value' and 'Mean' are used interchangeably to describe the first moment about the origin.
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About This Question
- Subject
- mathematics
- Chapter
- statistics and probability
- Topic
- expected value
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Mean
- Mathematical Def: E(X)=∑xiP(X=xi).
- Concept: It represents the long-run average value of repetitions of the same experiment.
- Terminology: In the context of probability, 'Expected Value' and 'Mean' are used interchangeably to describe the first moment about the origin.
This easy difficulty mathematics question is from the chapter statistics and probability, covering the topic of expected value. It appeared in the 2025 exam.
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