1.1 KiB
1.1 KiB
title, description, published, date, tags, editor, dateCreated
| title | description | published | date | tags | editor | dateCreated |
|---|---|---|---|---|---|---|
| 隨機變數 (Random Variable) | true | 2025-12-28T17:19:30.971Z | markdown | 2025-12-28T16:41:51.938Z |
Discrete
Probability Mass Function (PMF)
A set of probability value pi assigned to each of the values taken by the discrete random variables xi.
and
Probability
Expectation
Cumulative Distribution Function (CDF)
Continuous
Probability Density Function (PDF)
Probabilistic properties of a continuous random variable.
Expectation
Cumulative Distribution Function (CDF)
Symmetric
If there is a point that,
Then,
Is the expectation of this random variable, equal to the point of symmetry.
Median and Quantiles
The middle value of the random variable.
For median, set p to 0.5.
Variance
A positive quantity that measures the spread of the distribution of the random variable about its mean value.
Larger values of the variance indicate that the distribution is more spread out.
Missing superscript or subscript argument