diff --git a/education/statistics/random-variable.html b/education/statistics/random-variable.html index 14356f8..265836d 100644 --- a/education/statistics/random-variable.html +++ b/education/statistics/random-variable.html @@ -2,7 +2,7 @@ title: 隨機變數 (Random Variable) description: published: true -date: 2025-12-28T19:27:09.103Z +date: 2025-12-28T19:27:18.013Z tags: editor: ckeditor dateCreated: 2025-12-28T16:41:51.938Z @@ -11,26 +11,16 @@ dateCreated: 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.

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FIG 1-1
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Probability

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FIG 1-2
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Expectation

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FIG 1-3
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Cumulative Distribution Function (CDF)

A set of probability value pi assigned to each of the values taken by the discrete random variables xi.

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FIG 1-4
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FIG 1-5
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Continuous

Probability Density Function (PDF)

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Symmetric

If there is a point that,

Then,