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docs: update education/statistics/random-variable

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---
title: 隨機變數 (Random Variable)
description:
published: true
date: 2025-12-28T16:54:25.985Z
tags:
editor: markdown
dateCreated: 2025-12-28T16:41:51.938Z
---
## Discrete
### Probability Mass Function (PMF)
A set of probability value **p~i~** assigned to each of the values taken by the discrete random variables **x~i~**.
### Cumulative Distribution Function (CDF)
## Continuous
### Probability Density Function (PDF)
### Cumulative Distribution Function (CDF)