28 lines
546 B
Markdown
28 lines
546 B
Markdown
---
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title: 隨機變數 (Random Variable)
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description:
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published: true
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date: 2025-12-28T16:58:42.847Z
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tags:
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editor: markdown
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dateCreated: 2025-12-28T16:41:51.938Z
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---
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## Discrete
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### Probability Mass Function (PMF)
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A set of probability value **p~i~** assigned to each of the values taken by the discrete random variables **x~i~**.
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$0 \leq p_i \leq 1$ and $\sum_{p_i} = 1$
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Probability
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$P(X=x)=p_i$
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### Cumulative Distribution Function (CDF)
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## Continuous
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### Probability Density Function (PDF)
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### Cumulative Distribution Function (CDF) |